It shouldn't affect the Star Wars TV show at all since production on shouldn't clash with production on Indy IV, and Lucas only has a role as a producer in Indy IV. Spielberg is in works to do a JP4, supposedly with Keira Knightley, and once again as director. We'll just have to wait and see, but to be honest i can't see Indy 4 or Jurassic Park 4 coming out any time soon. I don't think there will be an Indy 4, there's no way that they're going to get going within 2 years at the rate they're going. Expect another wave of Munichs, Terminals and WotWs to pop up for Spielberg.