User blog comment:Jojo-a-gogo/Do you think that JJBA will be featured in Project Versus J?/@comment-1739368-20121222122606

I think they have a pretty good chance will all the publicity Jojo is getting right now. Doesn't really matter either if Jojo moved to Ultra Jump, the first 6 parts and some of 7 will were featured in Weekly shonen jump, and It'll remain that way.

Like 90% of the characters in Jump Ultimate Stars were from mangas featured in Jump a long time ago and most have been over for while. Jojo was part of the roster back then which made Shonen Jump pretty much what it is today. Part 3 will always be affiliated with Weekly, and not Ultra.

So yes, there is a high chance.