George isn't serious about Indy 5. Or Indiana Jones at all, really. If he was, he would have had something ready to follow up KOTCS with after bringing this franchise back after so many years. Right now he's busy feeling sorry for himself/retiring and pumping out more star wars stuff, like 1313. Because when you see a two-fisted, tomb-raiding, action/adventure game like Uncharted, and you happen to own the license to both SW
and Indy, the natural response is to use it as inspiration to make.....wait for it.....ANOTHER STAR WARS GAME. Of course.
Here' some footage to prove my point:
gameplay footage