KG will likely stay.

Boston (upper management and fan base) will not be able to release PP easily after over 10 years of his services, and I have a gut feeling that Boston will notjust blow it up.  Without Rondo, trading anyone is not going to turn Boston into a solid contender overnight for the remaider of this season. I doubt Danny Ainge will pull the trade trigger too soon.

I don't believe KG is the type of players who live for an extra ring.