Harrison Ford told the Calgary Sun this about Indy 4, "Of course, I'd be eager to do a fourth Indy. It's a great character and the movies are great entertainment. A lot of groundwork has been sown on this character and these films. It deserves to be revisited. Steven (Spielberg), George (Lucas) and I have spent many, many hours discussing a direction for a fourth adventure…I'd personally love to see Sean Connery be with me in the next chapter."
And what about M. Night Shyamalan writing it? Ford says it is "just another industry rumour. There have been so many rumours connected with this project…If he really is working on a script, it's something I haven't been made aware of."