I like your idea Drew, you can't have Kane around if the Undertaker is not gonna be around anymore. So it makes sense and a good way to write off Kane for good. But the problem is that these two have no chemistry in the ring. They fought each other at 3 ppvs in a row and they were just so dull. Even their match at WrestleMania 20 was boring. It would have to be an absolute war with weapons and blood etc. That's not gonna happen as long as WWE is still PG.
But it does seem like it's gonna be an Undertaker/Triple H rematch, so who knows where Kane goes from here. He's back to tag teaming with Big Show, which seems like the 10th time they're doing that. Kane was a monster heel last year and now he's all buddy buddy with Show and Santino Marella, it doesn't make sense! lol