God, i love long chapters (something thats rare on this site).
So superman is ready to go? He pretty much has all the powers he needs in this chapter and can even go with a third persona and create the flash.
Although i hope your superman won't be killing people like your batman. he is supposed to be in the light while bats is in the dark.
Great story but with UFC while a great cover is like going to a elementary school and playing dodgeball with the kids. Yes it's feels good and simi rewarding but in the end your still playing with children.