Honestly, I'm OK without Arnold in it, although a cameo would be cool. I guess I would just hope that they make this film darker and actually get a decent script which I can't see why that is so hard to do. Megan Ellison said the new film will definitely be Rated R although obviously that won't make or break the film, but it might help with keeping it darker and less "family friendly".
I say pick up where Salvation left off. I don't like the idea of them picking and choosing elements of the story to keep. Also the future setting is good - we've had the present day setting, its done to death. I actually liked what McG did with the visuals of the film and the sets were cool, although that is the only thing about his work on the film I liked. I would love to see David Fincher or Darren Aronofsky direct T5, I've never seen Justin Lim's work.
As for Indy 5, while I thought Indy 4 sucked balls, I'll probably pay to see Indy 5, but I won't like it.
"Black holes will evaporate over a long period of time as eventually anti-matter holy balls that student in the second row is a piece of ass falls into the event horizon while the...."
Did I just advocate responsibility? What is this world coming to???