Stephen Spielberg apparently really wants Chris Pratt for a new Indiana Jones, and according to this clip it sounds like Pratt is game, provided that "it's perfect" (you know, no pressure). He gently quashed any rumors that it's currently happening saying, "it's all nothing until it's something and so far it's not something." He went on to express interest though, saying "it'd be cool. No one's called me, you know, there's a lot of talk about it... the pressure would come just because it's such a great franchise you wouldn't want to get it wrong, so for me it'd have to be perfect to do it."
Keep your hope alive, friends. Pratt for Jones 2015!