According to MTV, the word from Lucas and company that there are more Indy movies planned is bunk:
"That’s purely a rumor, idle chatter among Internet fans."
I guess that flies in the face of what IESB.net reported yesterday:
"How solid is this intel? Not to be cheesy, but solid as a rock!"
Which one of the above is correct? I'd bet it depends on how much money Indy 4 manages to bring in. :-)