Strome is a smart player, and now that he's got a taste of success I highly doubt he'll regress to a bust. He isn't ever going to drive a line, but doesn't mean he can't be a key piece.
Most likely he'll be a 50-60 point complimentary player the next few years playing beside Debrincat, Kane, and Toews, and can still develop into a ~70 point player in his prime. The dude is 21 and has been close to a PPG pace on the Hawks.
Perlini.. I have no idea what is going on with him but I hope we go after him in the off-season as our next project.