@Nasir. That is in fact correct and you should consider 2 years to be a more realistic estimate. The airport project is a complex and multi-faceted undertaking and its completion time is not determined by our personal views, but rather by technical factors further compounded by government inefficiencies.
I am glad to hear the news of the control tower contract although I haven't seen it anywhere in the media. Last time I heard the company had gone into litigation. I hope its true because if the official estimated completion time is 6-7 months, we are definitely looking at 10 months.