I heard this on the WDW Radio podcast. They are organizing a special package, September 24-27, which includes “Exclusive dinner & show in the Adventurers Club” as part of their Everest Adventurers Weekend.
WDW Radio - Everest Adventurers Weekend
It is a private event, so to attend you would need to to participate in the package. They also mentioned “no alcohol.” Still, it sounds very cool; I wasn’t even sure if the building was still there or not.