There haven't been confirmations of his involvement in the film from crew or the studios, but there are reports that now claim Chris Pratt is officially replacing Harrison Ford in the upcoming Indiana Jones 5.  

Harrison Ford Officially Being Replaced In 'Indiana Jones 5?"

According to The Daily Star, Pratt's casting was confirmed by his wife Anna Farris' Mom co-star, Allison Janney, at an unspecified LA event, with his reportedly being given a paycheck of $20 million for taking on the role. 

Nothing has been confirmed by Pratt, nor have Steven Spielberg or anyone from Paramount Pictures or Disney.  

Could Indiana Jones Be Turned Into Indianna Jones?

Rumors have been linking Pratt to the role on and off since last year, and the actor himself has addressed them while doing press for the upcoming Jurassic World, maintaining that he hasn't been officially been made an offer, and even if he was, he doesn't know for sure if he would take it. 

"It's the rumor mill, I've heard about it for the first time the same way everyone else did. I was one of the last people to know, in fact, because I was out of service for four days," he told Comic Book Resource. "My reps got a hold of me and were like, 'Jesus, Chris pick up your phone.' It's a very exciting and very thrilling prospect, but, truly, up to this point nobody has contacted me or called me up and made me the offer. I would probably approach this like I did with Jurassic, which is, it's really exciting, but I care so much about the original source material, I'd have to know it was perfect."