Current rumor is that a Universal Parks museum is supposed to go into The Garden of Allah Motel. My guess is it will feature pictures, props, and models of past Universal attractions.
I would love for them to include a blue sky section with models of upcoming attractions like Kong.
And what make me more interested is that Jason Surrell is an experienced show writer that recently left Walt Disney Imagineering and is now at Universal Creative. Mr. Surrell worked on One Man's Dream at DHS and I think this museum will be a similar concept.
http://en.m.wikipedia.org/wiki/Jason_Surrell