I was at the site yesterday and snuck a few photos of the new wave pool.
In my opinion - ** please note I am not a builder, I am not an engineer, simply looking at things from the outside ** - I do not know how they can be ready by December 1 of this year. I can see they will complete by Dec 20 for the start of high season!
Maybe they will open sections of the hotel but the part I got to see is not finished. The pool is partly done, maybe the rest will be quick and easy - I don't know. But it appears to be behind. If your holiday is booked after Dec 20th then I would not be concerned at all.
IF your holiday is booked before that - if it was me - I would call the tour operator or travel agent you booked through and ask lots of questions.
This is the new slide attached to the wave pool.
View from the road entering the complex as you go towards the reception center.
Again a view from the road.
I will continue to get updates as I can.....