From the OC Register:
Crystal skulls may be added to the Indiana Jones Adventure attraction in Disneyland, but the “Summer of Hidden Mysteries” will end after this summer.
Glenn Kelman, a Disney Entertainment Productions senior show producer, talked about the Indiana Jones touches added to Adventureland for the summer.
First, he said that the “Summer of Hidden Mysteries” will only last through the summer.
“There are no plans to keep this event running along past this summer,” Kelman said.
He also mentioned that “as the [Indiana Jones] franchise continues, the possibility may come up to add new things to the Indiana Jones Adventure attraction.”
He said that there are no plans to remake or change the Indiana ride at Disneyland. Kelman said Imagineers’ “imagination could run wild” with new things to add to the ride from the latest “Crystal Skull” Indiana Jones movie.
Imagineering Spokeswoman Marilyn Waters said she knows of no plans to add “Crystal Skull” touches to the attraction.
She added that “it doesn’t mean that in a couple of months we won’t say ‘hey, why don’t we add this.’