Hear me out. bitches.
Pikmin has always been a solo experience for the main game. However, in Pikmin2 you could swap between olimar and his helper to complete the tasks.
Pikmin3 returns with more than one user controlled character.
Pikmin3 was originally a launch, then launch window, and now Q2 game.
Pikmin3 official listing on Nintendo's site says number of players is "TBD".
WiiU was originally a one gamepad system. Then later it has been confirmed to eventually utilize two gamepads.
I don't think its coincidence that this is happening. I think Pikmin3 was purposefully delayed so it could showcase dual gamepad support.
Pikmin3 has the option for up to three user controlled characters plus all the pikmin they toss around. I think its perfectly reasonable to have 2 or 3 player co-op on WiiU where users can have their individual screens and even wiimote support as even the gamepads have a sensor bar built-in.
Its the perfect opportunity to show off the awesomeness of a off-tv screen as well as its utilization with wiimote and on a large Nintendo IP.
I'm calling it now. Pikmin 3 will have co-op play with two gamepads and all that will release in Q2 2013.








(Or something like that.)