I really don't think Nintendo should be in project x zone 3 because I think a game like that should release on all consoles. If it does, however I don't think they should get an equal amount of characters as every other company in the game. While they do have a lot of non-cartoony characters it would just feel weird for them to get a ton of characters and have them all be fire emblem, xenoblade and whatever else with no Mario's or most of the thing Nintendo is actually known for. I know Sega's a similar situation but I think that's way different considering the perception of Sega in Japan.