With the way they've designed it they'll have room for expansion no doubt with new tower wings above that 2-story podium along Red River.
The interior of the medical center is free of capitol view corridors, but it is bordered to the north and south by them. That's actually going to force them to go more vertical in order to have the space they need. I wouldn't be surprised if several of the new buildings/expansions reach 200 feet or more.
