I'm not so sure, not quite yet anyway. I think it really comes down to whether the new coach (and D-coord?) can get through to him and keep him happy/motivated. Most important of all, of course, is whether the team next year becomes a winner.
Schwartz's no-holds-barred approach to football played into Suh's rough nature, if a new coach wants to instill more order and discipline I think that, like Stafford, we'll learn a lot about how well he can actually take direction and play smart, fundamental football.
Calvin seems like a nice enough guy that I find it hard to think of him demanding a trade only now, given all the shit that he's been through already. Add to that that he's signed to a pretty weighty contract as far as receivers go, which could potentially dissuade other teams from taking such a cap hit and potentially offsetting their team balance. Add to that the fact that he's been getting banged up quite a bit in the past few years. Yes, even a slightly-injured Calvin is currently better than like 85% of receivers in the league, but it won't surprise me if he starts to wear down in coming years and his performance suffers.
All in all I wouldn't totally rule out what you're talking about, but I believe he's a Lion for life at this point, for better or worse for him.