Here's the latest 'next film', I can say this source is very very reliable, and I'm about 99% sure of this. Well I can't talk much, I have to go do talk thingee, but this was too cool not to put up!

The film is called Random Hearts and is about a Washington internal affairs
sgt (Ford) and a member of congress, (possibly Kristen Scott Thomas). Their
respective spouses are involved in an affair that comes to light when the
said spouses die in a plane crash.

The film starts shooting on Sept 1st this year.

Ford has signed on
the dotted line but KST hasn't as yet.

If Harrison Ford is doing Indy IV it won't be until well into next year.

Call me Indypendant