I hope the armor makes it in as an alternate outfit. That'd be a nice wink to the "veteran" fans ^^

Anyone expecting Mewtwo to have an armored alt in Smash Wii U/3DS is setting themselves up for diappointment. Armored Mewtwo was only shown fairly briefly an extremely old movie, and on top of that, it has never been seen in any actual games.

Now, I’m not saying it wouldn’t be cool, but I just don’t see it happening.