What are the odds we see Rey and Kylo vs. Darth Sidious?

This would be the most exciting thing that they could do with this movie in my opinion. Force ghost Anakin turning Kylo back to the light and him joining forces with Rey to defeat the ultimate evil of the Star Wars universe. This would explain Kylo fighting against the Knights of Ren as well.

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It just wouldnt have worked based on how powerful darth sidious became. Even before taking their lifeforces he one-shotted them with tk. He doesnt need a lightsaber, he just operates on a whole different level. But i think the prospect of sidious entering a young clone body and dueling them for fun is a good idea, a la dark empire.