^We don't have any idea yet. Could be fixed seats, could be wildly spinning, or it could be a huge surprise and be a completely different concept altogether.
I'm pretty positive most people's hunch is correct though: elements of tech seen on Cobra's Curse will be seen on this ride so that it is a hybrid between CC and what is seen on that video. Likely to be regulated spinning, but that's just the popular hunch at the moment.
The ability to control seats so they face a certain way during thematic elements just blows open the door to endless possibilities though. With the fun theme they've picked, this could be the most detailed coaster since FiTH.