That’s right, the idea is heavily teased, but they do sort of have a (definitive?) falling out at the end, or at least it could be taken that way (wasn’t, of course).

I remembered another one. People were saying that they sure hope that it gets explained where Luke’s blue lightsaber came from in TFA. I knew right away that they weren’t going to do that (in a movie), because it doesn’t matter. Another another one, the snoke theories were crazy after TFA. Plagueis was one of the most popular ones, and I thought there was basically no way that would end up being the case.