Let's see, it makes the most sense to put in on the Wii as that platform has the old Megaman back-catalogue on the Virtual Console and PS360 gamers are less likely to buy 2D games. Wii can use some more support from Capcom as Capcom already has announced a lot of titles for PS360.
So, it makes sense the game will be a W...
...Oh wait, it's Capcom... PS360 game confirmed.