I can't imagine many paying attention right now, but I would have totally loved to have had the following variants of costumes for the heroes:

 

1. Wonder Woman: Maxima, Supergirl
2. Batman: Nightwing, Batman Beyond
3. Green Lantern: Guy Gardner
4. Superman: Cyborg Superman, Eradicator, Superboy
5. Huntress: Batgirl
6. Martian Manhunter: Doctor Fate
7. Zatanna: ?

I know, I'm dreaming...

 

 

Oh, sweet Jesus, playing as Maxima would be so cool!
As would Dr. Fate, although I think the power set would need tweaked a bit to get him to play properly.
Zatarra would be a cool alt. for Zatanna (either her father or the Teen Titan version)
Also, Kingdom Come costumes for the main heroes would be kinda neat (although I don't think Z made an appearance in that story.)

Those are cool ideas.

 

How about Azrael version Batman? Bizzaro Superman.

 

How about characters for a sequel?

 

I nominate Plastic Man and Steel.