Pac-Man looks great and plays a lot like I envisioned he would. When people would say Pac-Man wouldn't work in a Smash Bros because he lacks moves, I'd always bring up he could easily use things like fruit or even the ghost to help him fight, there was always a lot of potential. Nice to see that not only did Sakurai do that, but he even expanded on it by giving Pac-Man other older Namco related arcade items to fight with as well.
This is why when people say a character doesn't have enough potential to be a character in Smash Bros, they need to learn by now that with enough creativity anyone can be a character. Plus with the Gematsu leaker looking more accurate with each new reveal, don't be surprised if the Chorus Men from Rhythm Heaven are indeed playable in the end. After what he did with Pac-Man, making someone like the Chorus Men playable isn't that farfetched either.
Actually thinking about the leaker, in the roundtable Sakurai mentioned the game was so huge they have hundreds of people helping to debug it. If this leaker ends up being the real deal which right now they're looking pretty good, I wouldn't be surprised if that's how they got the info. You get that many people working on something as big as Smash Bros, it's not that hard to imagine at least one of them would find a way to spill some of the beans.
Of course if this leaker is indeed true, people should remember they never spoiled Rosalina. So even if Shulk, Chrom and Chorus Men are all in the game, there can still be other newcomers the leaker hasn't spoiled yet like.