So, I had an epiphany earlier today. How about instead of another game like Goku vs. Superman (which is limited to those two characters), we have a huge brawler like game. I was thinking about calling it "Manga vs. Comics" or something like that.
Anyway, here were some of the ideas I was gonna include;

Vegeta vs. Wolverine (obviously)
Monkey D. Luffy vs. Mr. Fantastic
Yusuke vs. Batman
Rurouni Kenshin vs. Deadpool
Naruto vs. Spiderman

Feel free to chime in and give your own ideas on the game.

I'd love to hear from you!
-Sam