Yes, it's supposed to be "immersive" entry to the ship with a view of the ocean upon exiting. Looks to be light panels to me (Like what's on MSC ceilings) for light shows. I don't think this will be anything groundbreaking. I'm sure it'll be a cool effect.
The only people whose glorified it are people online when it was spotted. All the people trying to guess what it was from a VR ride to .. who knows what.
I'm sure others will see this but figured i'd point it out- looks like the aft will have an infinity pool children's play area. Lounge space with ocean views bringing guest closer to the ocean (a big complaint of some past ships). A jogging track. Second image of port side, non-infinity balconies.
I don't know what the shutter speed was- but i always shoot NTSC 30fps or 60fps. I didn't have any issues on Wonder that I know of. Inside restaurants it may be a bit different. When on Anthem inside the Wonderland restaurant, i noticed some banding but wasn't horrible. I hope this helps and I hope you have an amazing time.