Way too early to predict with any kind of certainty, but my guess is:
1) Larsson - playing so well already, looks like a 2-way stud, so steady and well rounded
2) Hamilton - high offensive upside, great size, decently physical and shows lots of defensive promise
3) Murphy - was worried after that nasty Kuhnhackl, thought it'd be a potential career changer, but he didn't end up missing much time and has looked good since coming back. His size will always be an issue defensively, but he makes up for it with skating and offensive skills, should be a high end NHL puck mover
4) Morrow - also a great skater with lots of offensive talent, not as dynamic as Murphy, but a touch bigger and a bit better defensively
5) Percy - OK, I'll freely admit this is a homer pick, but I like his game. Very mature/poised/intelligent, I can see him playing a high IQ 2-way game in the mold of someone like Dan Hamhuis. Before he got concussed on December 11th he was playing great, putting up 4 goals, 22 points, +14 over 24 games. Didn't fully find his groove after coming back, but he didn't play a tonne of games after his return, so it's understandable. I just think his game will translate really well to the NHL due to his high IQ, great first pass, and positionally sound play. I can see him being a really solid, reliable 2nd pairing dman.