Back when he first started talking about it the plan was for Foxx to star alongside Ken Jeong.
We’re assuming Foxx will still star as the movie was written by him and he’s also directing, but four years is a long time so anybody that planned to join the film originally may have moved on to other things by now.
Jamie Foxx has been working on All-Star Weekend for at least four years.
As far as we know that may still be the plan, but neither Foxx nor Jeong are actually listed on the film’s IMDB page, so it’s anybody’s guess.