Yeah, I haven't really cared for the last couple episodes.
Going back to being trained by Bisky again just feels like they're going in circles.
I think it would be if it happened in the middle of the arc, but if any of them are still alive after the King and Queen are dead, I don't think it would be stupid at all.
After all, it's not like they can reproduce on their own, and without a chain of command, there's really no reason for them to keep doing what they're doing.
If Colt is defeated, but not killed, and recovers to find the King and Queen already dead, then I would fully expect him to give up his current path.