The big problem is I think road access.
There is still no sign of any work on the E311 to improve the current very sub-standard access.
And of course the car park. It seems from outside that work is underway on the car park but hard to tell.
In any case it is not sensible to open without these.
Contrast this with Dubai Parks where very extensive road works are already underway for a huge interchange on the E11 for access.