Free agency and the trade market reshaped all eight Atlantic rosters this summer. Some teams bought stars at a discount, some bet on young players about to leap, and a couple handed big money to production that may not repeat. Here is the single biggest new face on every Atlantic team, run through the HighDanger numbers: expected goals, finishing luck, on-ice share, and our 2026-27 projection with an honest floor and ceiling. The box score is where these stories start. It is rarely where they end.
Boston Bruins: JJ Peterka
Do not let last season fool you. Peterka is only one year removed from a 68-point breakout in Buffalo (27-41), and the 47 he posted in Utah looks like the outlier, not the new baseline. The drop was almost entirely in the assist column, 41 down to 22, while his goals held steady at 25. Our model anchors on the most recent season, so it projects a cautious 48 with a 61-point ceiling, but that reads light for a 24-year-old entering his prime who has already touched 68. The one honest caution in our numbers is the finish: those 25 goals came on just 17.5 individual expected goals, shooting 7.5 above expected, so the goals could dip even as the points climb. The bet is straightforward. If the playmaking rebounds in a better setup, hopefully with Pastrnak, the real number lives in the high 50s, not near the model's floor. Boston is buying low on a winger whose ceiling still starts with a six.
Buffalo Sabres: Olen Zellweger
This is a bet on the underlying play, and on the arrow. Zellweger's raw line (7-15-22) is modest, but he has climbed every year, 9 to 20 to 22 points as his games and role grew, and he just drove a 53.6 percent on-ice xGF share at 5v5, meaning the ice tilted his team's way with him out there. The box score has not caught up to the play-driving. Our model projects 27 with a range that runs to 33, and the untapped lever sits on the power play, where he managed only 3 points all year. The catch in Buffalo is Rasmus Dahlin, who owns the PP1 quarterback job, so Zellweger's man-advantage time likely comes on the second unit. Even a real PP2 role beats what he had, though, and the assists should climb from there. Buffalo essentially swapped one young offensive defenseman in Bowen Byram for a younger, cheaper one, and at 22 the arrow points up. A mid-30s season is the reasonable target here, not a plateau.
Detroit Red Wings: Viktor Arvidsson
Detroit is buying proven scoring and Arvidsson can still fill a net. His 5v5 rate last year was a genuinely elite 3.06 points per 60, and his career says the down years are the blips: he has posted 49, 59, and now 54 in his healthy seasons, rebounding from a quiet 27 in Edmonton the year before. That 54 is real value for a middle-six winger at 5 million. The caution lives under the hood. At 33 his line was outchanced at 5v5, a 47.3 percent xGF share, while the 25 goals leaned about 5 above expected, so the finishing did run hot last year. Our model projects a repeat 54 with a range of 42 to 66, a fair bet for next season. The real risk is the term. The deal runs through 2028, deep into his mid-30s, and the possession signal says the scoring will need sheltering to hold up as the legs go.
Florida Panthers: Brady Tkachuk
The box score sells him short, and every number underneath screams bounce-back. Tkachuk missed 22 games last season, yet still paced at 0.98 points per game, an 80-point clip over a full year, and he is not far removed from 83- and 74-point campaigns. The finishing was cruel: he generated 29 individual expected goals but buried just 22, a minus 7 that reads as bad luck, not decline. It gets starker at 5v5, where his line owned a dominant 62.6 percent expected-goals share and still got outscored 18 to 28, the kind of percentage swing that does not repeat. That is why our model, usually the conservative voice in the room, jumps him all the way to 80 points, with a range of 74 to 86. Add 20 power-play points and his trademark physical game, 162 hits, then line him up beside his brother Matthew on a contender, and Florida did not just add a star. It bought one at a discount, with the underlying data pointing straight up.
Montreal Canadiens: Ivan Demidov
Montreal's biggest move was not adding a player but refusing to lose one. Start with the debut, because it earned the spotlight: 62 points as a 19-year-old, one of the finest rookie seasons in the league and a total that runs away with the Calder in most years. This time it made him the runner-up behind Matthew Schaefer, which is no small company to keep. Better still, the underlying numbers say almost none of it was luck. He finished within 1.4 goals of his expected total and ran a 20-point power play, so the production is built to hold and grow. At 5v5 he already produces at a strong 2.44 points per 60, most of it primary offense, and his line stayed above water in real goals, 27 for and 25 against. Our model, with the young-player curve applied, projects 63 next season with a ceiling of 78, and his peak is still years off. So the Canadiens locked him up now, an eight-year extension worth 9.125 million a year that begins once his entry deal expires. That lands in Tim Stützle territory on the high end, the going rate for a young forward signed long-term off his entry contract, except Montreal got Demidov's name on it two years younger. The logic is the Leo Carlsson lesson in reverse: Anaheim waited on its young star until the talks turned into a public offer-sheet standoff, so Montreal paid early, set the number on its own terms, and kept the room quiet. Sign the 62-point kid before he becomes the 85-point one.
Ottawa Senators: William Eklund
Trading Brady Tkachuk was always going to sting, so Ottawa made sure the centerpiece coming back had a rising arrow. Eklund is a 23-year-old who has already posted 45, 58, and 53 points in his three full seasons, and last year's total was quietly suppressed by bad luck: he generated 21.4 individual expected goals but scored only 15, a minus 5.3 finish that our model flags with a literal BUY tag. Normalize the shooting and this is a 58-to-62 point playmaker, not a 53-point one. Ignore the ugly minus 31, too, because it is a San Jose team-context artifact. At 5v5 his line was dead even, 24 goals for and 24 against on a 48.8 percent expected share. He is a genuine setup man, 38 assists last year and 41 the year before. One honest caveat: plenty of those helpers came feeding Macklin Celebrini in San Jose, so leaving that partnership puts the assist total at some risk. The offset is that Ottawa hands him a new high-end linemate in Tim Stützle, who can become Eklund's next Celebrini. Our model projects 57 with room to 71, and moving off a rebuilding San Jose roster should still lift the goal share. Ottawa gave up the star, but it bought a 23-year-old whose real level sits above what his box score showed.
Tampa Bay Lightning: John Carlson
Age is the only real question here, and the underlying play keeps answering it. Carlson just posted 60 points at 36, his best total in three years, and he did it while logging 23 minutes a night and quarterbacking the power play to 46 assists. What separates him from most aging defensemen is that the process still holds: his pairing ran a healthy 54.7 percent expected-goals share at 5v5 and finished on the right side of the ledger, 31 goals for and 29 against, with the scoring built on real chances rather than luck, just plus 2.1 over expected. He is still a genuine top-pair workload, not a name coasting on reputation. Our model shaves him to 55 for next season, a fair age adjustment, with a floor of 49 that reflects how steady he has been, 52, 51, and 60 the last three years. The bet is the term, an 8.5-million-dollar deal that runs through 2028 and into his late 30s, but nothing in the possession numbers says the drop-off is imminent. Tampa bought present-day power-play offense from one of the rare 36-year-olds whose game has not started to leak.
Toronto Maple Leafs: Darren Raddysh
The 70-point breakout is the splashiest number in the division, and our stats both validate it and warn about it. The play-driving is completely real. Raddysh logged 22.7 minutes a night, ran a dominant 57.7 percent expected-goals share at 5v5, and his pairing outscored the opposition 41 to 27, results that matched the elite process. Pair that with 48 assists and 26 power-play points and you have a genuine top-pair quarterback. The catch is the goals. Raddysh scored 6 and 6 the two seasons before this, then popped 22, and our numbers say that came on just 14.3 expected, a plus 7.7 finishing spike no defenseman sustains. That is why the model FADE-tags him and pulls him to 59 next season, with the goal total, not the playmaking, doing the regressing. Toronto is paying 8.5 million through 2034, an eight-year bet at age 30 on the back of a single career year, so the risk is real. The comfort is that the part driving those points, the possession and the power play, is the part most likely to stick. Just do not pencil in 22 goals again.
