It seems like a waste that they are not having Indy explore Atlantis. I mean, then two would be perfect. I hear they said they have run out of McGuffins for Indy to search for. There are tons of other artifacts and objects Indy could search for.
I had even heard they considered remaking one of the old episodes of "The Young Indiana Jones Chronicles" as an Indy film. The Spear of Destiny, Noah's Ark,The Gaza Pyramids,etc. Why not mix up Indy with a National Treasure like theme? Have him search for treasure on Oak Island?
If George Lucas is reading this, call me. Lets talk. We'll do lunch. I work for a fair fee.
'There are three sides to every story. My side, your side, and the truth. And no one is lying. Memories shared serve each one differently'
-Robert Evans-