That is a new CP piece of track
And that is a crokscrew on a Intamin ride
Very similar, isn't it? If you look at the support junction on the piece, it is at the same "place" on the two piece. Have you understood me?
Now I think there will be a crokscrew. And I can't imagine an aquatrax with that kind of element. So, two options : looper, or wingwalker.
Let's look supports.
Here's one, with his friends.
I think they will be the helix support's, over the water. That supports don't look very tall, so the ride will be very near of the ground. With a wing walker, riders are on each side of the track. If the ride is to near of the ground, there will be a problem : riders will be on the water (on the CP track).
So that make me think the wing walker assumption is impossible, and it can just be a looper.
But that's my opinion, I may be wrong (and I hope i'm wrong, I want to see a wing walker at CP !).
Edit: The supports of the helix in the video of the PortAvenura coaster are as tall as the supports at CP. So it is possible! And they are the same color!