Why?
There are still more Mummy and/or Scorpian King Sequels to come,
This is the closest thing to a classic Universal "property" that has been given new life, and
whatever ride platform that you decide to utilize, the exterior could remain the same.
They could utilize the New York Street themeing and create an entrance to the "ride" through a newly created "New York Museum of Natural History" Facade. Maybe at the end of the street by the Twister entrance instead of the current Kong entrance if rumors are true that the new attraction will actually take up more space than the current Kong attraction. The Queue area would even look like a museum with the featured exhibit being the recent discoveries from a newly discovered archeological site. As guest walk through, somehow you would get locked in (ala the new Poseidon's Fury) and the only way out would be through boarding the new ride. I would prefer a Launched Indoor Coaster at this point but reading into Gault's comments, any type of ride platform that rivals Spiderman would do just fine also.
Six Months is a long time to wait until "official" word so I am sure more speculation on this attraction will continue to run rampant.
HAVE FUN