I'm not gonna give up on Metroid... I actually do want another Metroid.

[Kotastic]

I like the motion control aiming for Splatoon. :|

Also you're comparing apples and oranges, Splatoon is an online multiplayer TPS, whereas Metroid would be more comparable to something like Uncharted or something. I do think Metroid has vast untouched potential, though something tells me Metroid would be better in the hands of Naughty Dog.