Dub gate information
I have noticed that too Ayro. But if you are in T2 and your flight is using the "300" gates the FIDS will show you the gate number. It will only display "wait for gate" if you are departing from the "400" gates. The gate will usually be displayed at about 45 mins prior to departure but if you walk along to the FIDS at gate 413 all gate numbers are displayed hours ahead of departure. I think it is the DAA's attempt to keep people in the main shopping/eating area in T2.