the only capacity in which I want to see Kane going forward is Kane turning on Taker at Survivor Series to set up a Kane v. Taker final bout at the Rumble, before Taker inevitably faces Cena for his last Mania match. Although I think Kane would be the more fitting Mania opponent, and for both of them to go out on that match together.
Kane vs. Taker in Hell in a Cell for their last match ever at Wrestlemania? Then you've given them the ability to use weapons and they can beat each other up without having to be very athletic. And both receive tombstones. Then they walk off together, give one final look back at the cell, and salute with the fists in the air. Farewell, Brothers of Destruction.