I have a feeling we're going to see an interesting new challenger soon, Namco and Nintendo have been secret butt buddies recently. Lets not forget their history back in like 2004 where Pac Man was in the occasional Mario game. I think it was Mario&pac's racing or something.
Hell Screw copyright infringements, this game should freely take other characters and mash them the hell up in a 100+ player roster. 
With minor consent, of course.