While promoting his new film Bridge of Spies with Tom Hanks, director Steven Spielberg mentioned his hope to work with Harrison Ford on a fifth Indiana Jones film. In a chat with Yahoo Movies, Spielberg mentions his collaborations with Harrison Ford and Tom Hanks:
“We’ve gotta figure this out because now, Tom is tied with Harrison Ford: Harrison and I did four movies, Tom and I have done four movies… Now I’ll probably do an Indy 5 with Harrison, [so] it’ll be five for Harrison, four for Tom. … I’ve got to make another one with Tom, that’ll be five for Tom, five for Harrison. And I think I’m going to leapfrog that way for the rest of my career. With Daniel Day-Lewis in everything else!”
At this point, however, there’s not a lot of progress yet on Indiana Jones 5. According to Cinema Blend, there’s still not past the scripting stage.