I haven't covered the new Indiana Jones movie much, but there's a nice summary of the latest about the movie over at Rope of Silicon.
There are potential plot spoilers there, but IF what is in the article is true (and they're saying to take things with a grain of salt), then this could be a "close the circle" type of story with some really cool tie-ins to the original film.
I'm trying not to get too hyped about this one because to be honest, if George Lucas had a heavy hand in the script rewrite it does not inspire me with great confidence. Although Spielberg is involved and he's a great director, I don't know if he can get back to the "fun" mode he was in back when he was younger. His last few films have been pretty dark in tone, so we'll just have to wait and see.