Splendid artwork tribute. And, yeah, Batman Beyond meeting the Adam West Batman IS a pretty funny idea (particularly the point about "Gaslight" Batman being in the role of Spider-Man Noir.



As for the other cast members:



Wilson Fisk: Bane (It has to be somebody smart enough to be a good crime boss, but physically strong enough to pose a serious enough threat to Batman to kill at least one version with his bare hands)



Green Goblin: the Joker



Scorpion: Killer Croc



Miles Morales: Dick Grayson (well, he DID fill in for Bruce as Batman for a while following "Final Crisis")



Spider-Ham: Batmouse (Batman's Justa Lotta Animals counterpart on Earth C Minus [only appeared prominently in one story in Captain Carrot and His Amazing Zoo Crew in the early-1980s, but I can't think of a better "cartoon animal counterpart" to Batman that DC Comics actually owns])





Ultimate Batman (the one that Bane kills): A version that combines the best elements of all of the best past versions of Batman (the hamminess, general public image and generally light hearted nature of the Adam West Batman, the skill and intelligence of the Kevin Conroy Batman, etc.).



Peni Parker: A more high tech early teens version of Bryce Wayne (Batman's female counterpart from Earth 11) who has a giant robotic Bat as an ally.



Loose analogue to the Tobey Macguire Spider-Man: A loose analogue to the Ben Affleck Batman (though, instead of letting himself go and becoming more slovenly, he gets even more cynical and intense than he used to be [which is saying something]. That being said, he still gets VERY protective of THIS universe's Dick and is JUST self-aware enough to KNOW that Dick SHOULD NOT go down HIS path.)



Spider-Gwen: Catwoman (from the "Catwoman: Defender of Gotham" alternate universe)





And - I'm going to have to get back to you on everybody else.