countDown #26; Earth-15; "Superman?"
I'm pretty sure it is Superman Prime, the reason? in the second teaser image we see this "Black Customed Mullet Superman" talking in secret to "Mr. Henshaw" (Cyborg Supes) what would be the reason he is talking to that specific character, well, because right now they are working together as Sinestro Corps, why don't we see his face either in the teaser image and the past's week countdown issue?, well, that's simple, as a result of his fight with (the new) Ion, Superman Prime has now a big scar (or something like that) on the left side of his face (facing at us) , so showing us his face would be to kind of spoiler us about what's gonna be his faith after the Sinestro Corps War, makes sense I think, he survives and he becomes the "resurrected" Superman, he does this because in his insane mind he is convinced that he needs to replace Superman and what better way to do it than trying to convince the people that he is the Superman that resurrected years ago and that the current one is the "impostor" he keeps talking about.. obviously no one believes this, only him and his deranged psyche.
He goes to earth 15 and find this Luthor that "could have changed the multiverse and meke it perfect" but he didn't, who else would want to do this but Prime or Alex?
I think we know who he is already, he just have to wait for the Sinestro Corps War ending to confirm it.
> ...showing us his face would be to kind of spoiler us about what's gonna be his faith after the Sinestro Corps War...
Could you possibly have meant here "his FATE after the Sinestro Corps War"?