Will Smith Not Interested In Doing MEN IN BLACK 4

It has already been announced that Sony Pictures will be making a Men in Black 4, but it sounds like they may end up doing it without Will Smith. During a recent press event for After Earth, the actor was asked about the film, and he doesn't really seem that interested in reprising his role. I assumed that he and Tommy Lee Jones would come back, but here's what he told Collider,

Uh, y'know... I think three is enough for me. Three of anything is enough for me. We'll look at it and we'll consider it, but it feels like that it might be time to let someone else do that.

I've enjoyed the Men in Black franchise. All of them have been entertaining movies. It would be cool to see Smith reprise his role, but if he doesn't, it's one of those franchises I wouldn't mind seeing some new faces in. Smith did seem open to the idea of his son Jaden stepping into his shoes in the film, but that doesn't really make much sense to me, and it's one thing I don't want to see happen with the franchise. 

When he uses the word "consider" I imagine that means he'll think about it when he finds out how much the studio is willing to pay him. I guess we'll just have to wait and see how this all plays out.

Would you care if Smith didn't comes back for the fourth film?