It's nice to hear that Foegele wants to be back, but I think the fundamental flaw in his game is he seems top heavy and easy to knock over for someone his size, if he trained with Andy O'Brian (MacKinnon & Crosby's trainer) in the summer I'd be all for bringing him back, without improved balance and center of gravity I just see what happened these playoffs repeating.
For people wanting Jeff Skinner in the top 6, I see him more as a Foegele replacement (2nd/3rd line tweener), he's got top 6 talent and could likely put in above the curve top 6 offense playing with McDavid or Drai, but the flaws make him not someone you want to force into a prominent roll, I'd rather play him lower and slide him up or down based on the circumstances of the game.