Hard Eight Easter Egg - Phillip Baker Hall's Characters

During the scene of the movie where Samuel L. Jackson's Jimmie is confronting Phillip Baker Hall's Sydney in his hotel room, and is talking about Atlantic City, Jimmie utters lines to the effect of "I know the same guys you know. Floyd Gondolli, Jimmy Gator, Mambo Lomalli", Floyd Gondolli being PBH's character in Boogie Nights and Jimmy Gator being his character in Magnolia. So does this mean that in PT Anderson's next film, Phillip Baker Hall will be playing somebody named Mambo Lomalli?