If PLD plateaus and Laine fulfils his true potential his worth will be greater, but I think that's an unlikely outcome. Laine right now is the riskier bet - I think Chevy got max value for him.
I'm of the opinion that everything gets resolved once these two hit free agency or sign extensions with their respective teams. I see both as a risk for flight once they hit UFA. I hope neither does and they stick with their new teams. If that's the case, I call the trade a push in most respects, other than center>winger. Roslovic wasn't willing to settle for a low end role here so he gambled on holding out/not signing/whatever you want to call it. We got something, albeit less than we'd like, for him.
Make no mistake, I'm still sad and still see Laine as a top three wing in the league if he hits his stride in Columbus. Game 1 against Calgary was his ceiling and it's frightening if he hits that. He'd become a monster, play driving winger with phenomenal scoring touch. Essentially he would become Ovechkin. I wish him nothing but the best of outcomes (minus a cup at our expense).
That said, this is easily the best outcome of the trade possibilities we were facing for Laine. PLD gives us an effective 1-2 punch at center that is exceeded by relatively few teams (EDM, PIT, ?). If we can re-sign PLD we are set at center for the next decade arguably. That's without the possibility of Perfetti entering the conversation. PLD gives the Jets time to develop Perfetti at center without the stress of needing him to perform at center in short order. And if Perfetti fails to develop as an NHL caliber center, oh well, you have a play driving winger that should be the equivalent of an Ehlers. Tough concession that.
Perhaps the most important outcome of PLD coming to Winnipeg though is it should light a fire under Scheifele who has been the defacto 1C but hasn't necessarily been playing like one for some time. I'd contend that perhaps PLD should be the 1C going forward over Scheifele. It should certainly allow for some different line strategies and matchups, maybe moving Scheifele away from the other teams top line. To be fair to Scheifele I still think of him as a top center in the league, but unlike post 2017-18 I tend to rank him in the bottom ten rather than the top ten. I don't question his off-ice work ethic at all, but it hasn't been really translating like it had prior. Yeah, the D remains a contributing factor but suffice to say I'm very curious to see PLDs play in front of the D that offers so little support to Scheifele. It should help in a fair assessment of Scheifele's performance on D. For me if PLD struggles similarly to Scheifele then I'll be more sympathetic to the latter's play in the D zone.