last year fowler was around 255-260 though. he did a LOT of growing after he hurt his knee, and he also lost a half a step of quickness. Bo's also way, way faster than fowler was coming out of HS.Nudie's recruiting profile from Rivals lists him at 6' and 240. Bo is listed at 6'2 and 235 on the team site. He doesn't really have to "grow" into the position.
He can play the Nudie role because of his size and athleticism. Matter of fact, he can be a better Nudie because of his athletic abilities.
that said, it's entirely possible we see a completely different style of play out of the H position this year. Kiffen proved last year that he'd put any skill player at any spot to create the look he wants. Cooper and Bell lined up at RB, Drake and yeldon both split wide. No reason we wouldn't see someone like Bo lined up at H, but I don't think he'd be used like fowler.