Indiana Jones and Metamorpho

It always seemed to me that Rex Mason was sort of an Indiana Jones-type adventurer before his exposure to the Orb of Ra, so I figured it was only natural that they may know each other in a professional capacity at least.  Like most film projects, production has been pushed back on the next Indiana Jones movie, but it is still a go.  It's going to be interesting to see another director's take on Indy, and how he handles a hero nearing 80 years old.