Thanks for the info Observer, i have visited the place twice and the last time was 04aug saturday and i got the same answer from a worker at the gate "it will open on the 1st day of EID". So I think finish or not finish it will open for public or testing.
I tried to get inside just to chk it out, but I ended up going to the back outside the concrete wall and saw two cranes still working on the slides.
So for now i'll just wait for a positive feedback.
For those who want to "inspect" the place the coordinates are
N25.16009deg E51.29360deg or
N25deg 09.605' E51deg 17.616' or
N25deg 09' 36.3" E51deg 17' 36.9".
take Exit-29 then "service road", its around 25km from RAMADA signal straight ahead.