Sylvester Stalone is my hero...or not

Most of us that enjoy movies have a list - conscious or not - of movies we'd like to see made. For me that list includes some form of The Screwtape Letters and The Great Divorce (no I'm not a C.S. Lewis fan) as well as a series of novels by Susan Howatch. Two movies that never even came close to entering that list were Rambo IV and Rocky VI, but alas it appears that someone wants them made. My question is why would Stalone - who must be like 90 by now - still want to make these kinds of films? Has his career slipped that far - first a reality program then extending two movie series that were dead a long time ago. I don't know, but I don't suspect I'll be spending money to view these films, except maybe for the pure hilarity of it.