And what about Indiana Jones? Is Lucasfilm free to make more of those films, or is the distribution locked up by Paramount?

Yes Disney does have the rights to make more Indiana Jones films. However people seem to forget that the last one didn't do particularly well. That said from what I understand from the time of the acquisition that Disney is looking at Indiana Jones and I'd personally be surprised if they didn't do something but there isn't anything in particular on the drawing board yet.