Via Den of Geek we get this (they in turn got it from an interview on MTV),

MTV: Is the ball in George Lucas’ court at this point?

Ford: It is. That’s the process. With some general input, he goes off and searches for the MacGuffin and then stumbles into a story. And at some point, we have a chance to take a look at it and give some input.

MTV: And he hasn’t found the MacGuffin yet?

Ford: No, we’re still in the primary stages.

MTV: The end of the last film leaves your character in a very intriguing position. He has a wife and a kid. Can he still be that man of adventure with those commitments?

Ford: And he’s seen something. Remember those are the only witnesses to what he’s seen. That’s kind of interesting.

Really? Hmm, I’m not sure how exciting this was.  I’d go for another Raiders, but I’m not sure I can stomach another Crystal Skull.