The simplest way to frame this is - identify 18 centers who you think will pass him in the next 3-4 years (16 + Crosby and Tavares expiring contracts ahead of him). Remember that Hughes, Thomas, Thompson, Suzuki, Norris, Stutzle, Hintz, Aho, Pettersson, Larkin, and Circelli already have contracts that last until 2030 or later.
UFAs: Lindholm probably gets more than 8.5M this summer cause you know there's gonna be a bidding war for him. Slim chance for Duchene and Stamkos too, though they're not necessarily centers at this stage. In 2025 Crosby definitely would still get over 8.5M on the open market but who knows if he takes a discount, and Nelson and Tavares both could if they have strong seasons and the cap goes up as expected. Maybe even Bennett. In 2026, I could see Malkin or Kopitar getting 8.5M if they decide to stop taking hometown discounts. In 2027 you'll have Hischier for sure, and I think O'Reilly, McCann, Karlsson, Zacha, and Danault all have the potential to get an 8.5M contract. If the cap keeps going up by about 4M per year, which is what's projected from what I've read, the cap is going to be 100M by this point, so an 8.5M contract that offseason will be the equivalent to 7.1M this past season.
RFAs: This is a lot harder to project because it all depends on who takes short term bridge deals, who takes mid-term bridge deals that carry them straight to UFA, and who commits to long term deals. For this year, I think Byfield, Mittlestadt, Perfetti, Beniers, Lundell, Sillinger, Mercer, and Pinto could all be at 8.5 within 3-4 years if they go for short term bridge deals this offseason, play well the next two years, then cash in afterwards. Some of those are more likely than others, but they all have the capacity to have breakout years if they haven't had them already. Necas could get it if a team acquires him to play center, gives him a short term deal, and he does well there. Jarvis could get it if a team offer sheets him and decides to move him back to his natural position. Next summer Wyatt Johnson seems like a shoe-in if he doesn't get a short bridge deal, and Kurashev, McTavish, and Rossi are possibilities for that year with a breakout or two years later if they take short bridges that year. In 2026 Bedard and Zegras should get massive raises, and Cooley, Carlsson, and Fantilli are possibilities. In 2027 we're going totally off projection, but maybe Shane Wright's broken out by then, and if Celebrini lives up to the hype he could be in for a big contract.
If I counted correctly that's 31 names that have at least a chance of getting 8.5M in the next 4 years. There's probably a few guys who'll come out of nowhere to break out or move to center over the next couple years too. It's impossible to say exactly how likely it is that PLD's outside the top 30 in four years, but it doesn't seem farfetched to me.