That's definitely something some folks have speculated, but from what I have heard, the Discovery Center may see a small makeover downstairs, but not have the ride or queue go through it.
Also, there is not much space inside that building. Behind the hands-on exhibits is less than 2 feet of backstage walkway, so what you see in the rotunda is pretty much it. Not enough for a coaster load/unload and a queue, so not sure how that would work.
Now, raptor encounter... that I could see moving in there. Or other animal exhibits, instead of just dated 1990s era exhibits. We shall see.