Noida Extension infra delays: Property value pe kya asar?

Moved into my ATS flat in Sector 150 last month. Builder ne bola tha Metro extension aur FNG Expressway se connectivity zabardast hogi. But abhi tak kuch khaas nahi dikh raha. Ye infra projects ka completion timeline kitna realistic hai, especially Jewar Airport ka? Meri property value pe delays ka kya impact hoga?