User blog comment:Jojo-a-gogo/How many HXH characters do you think will be featured in Project Versus J?/@comment-219.198.51.87-20121220152137/@comment-5314364-20121221034601

The only reason I say that is because it was the 3rd highest selling manga in the last quarter after One Piece and Naruto in Japan. I'm not sure if it still in the same position though.

But I agree that it'll probably only feature Gon and Killua like the last Jump game.