I wouldn't be surprised if Crisp goes back for an overage season. The Habs already showed they aren't opposed of the idea with their prospects (Thrower) and Crisp missed an year of development due to injury.
The guy has more skill than a lot of people gave him credit for when he was drafted (including me). These are a couple slick plays (goal then no look assist) he made this season:
Interesting project. He seems to have no issues fighting but I wonder how often/well he hits and plays defensively (IMO more important).