I think it's safe to say the majority of his attacks will be from that game (assuming that all his B moves aren't just something coming out of one orifice or another). Granted, the purple 'n' yellow look is getting questionable, but this WarioWare wear just doesn't feel... right.
Maybe they just want to distance themselves from Wario: Master of Disguise...
Haven't you seen the videos? He move sporadically, and frame by frame, like Mr. G&W. Hardly seems like over the top WWE style smack downs, but I could be wrong.
As for the costume, I could go either way.
I just hope they keep the shoulder charge.
