Oceaneering could probably do it either way. My guess is that each RV will have a motion base because that's how they've done it with Spidey and TF. It works, so why change it?
I'm going with my gut and sticking to Premier Track and RVs with Oceaneering's motion base somewhere. The track just looks like Premier. The support structure for the switch track also looks identical to ROTMs switch structure, just stronger.
I really don't think UO would go with Intamin. Their track record is "meh" with new stuff. Premier has so far delivered to Universal 3 quality products, and helped out with servicing Rockit.