The only characters I could see working as hype characters are Mega Man and a surprise character (Professor Layton, Ryu Hayabusa, etc). I'm sure Namco wants one (they've already expressed interest in one), but the problem isn't Namco so much as Namco seems reluctant to push anyone so far (like Capcom is with Mega Man, although from what we know, Capcom is fine with Mega Man being in Smash) and that I don't see Sakurai being interested in a Namco rep. Sure there's Pac-Man and his super iconic status, but Pac-Man is hurt from not only being expected but not wanted by a majority, but current lack of interest from Namco in regards to Smash. Other Namco reps are hurt from not being as important as Pac-Man, no evidence that Namco will push another Namco rep and that one is even less requested than Pac-Man (although not expected but not wanted).