So, I have seen multiple posts about future crossover villains. I have two wants for future villains.
I feel as if the Legion of Doom should be the villains next year. I don't have much to say about that, but I feel it would make for an interesting crossover. Mongul is also possible.
Now, this is one I have had in mind. I feel as if this should be an adaptation of Crisis on Infinite Earths, making Anti-Monitor the villain. I feel he could make for an interesting villain, as his threat is not only earth ending, but complete multiverse ending. I have thought more about this crossover than next year's, and I hope that this one actually happens more than any other.