I still say if it can fit with the story it would be great to have Bill Shatner involved. If, like JJ says, it is "forced" then he should stay out.
I guess I don't get the venom from those that wouldn't even want it if it was workable and a good story. But its cool, we are all fans.
"I'll break out of this zoo somehow and get to you. Is your blood red like ours? I'm gonna find out. "-Captain Christopher Pike