There's also the fact that Sakurai (Smash creator) originally wanted Bomberman to appear in Brawl, but that was right when all the crazy stuff was happening with Konami/Hudson and they couldn't work out a deal.
[citation needed]
Spoiler:
PS: Unless you can go back in time and convince everybody who already voted for Shovel Knight, K. Rool, Wonder Red, or any other character who isn't Bomberman, it's highly unlikely he's getting in.