Noida infra timelines: Reality vs. ground truth

Since moving into Sector 137 last month, I'm already seeing some things about Noida's infra. We bought our 2BHK for ₹85L. Everyone talks about Jewar Airport and FNG Expressway. But honestly, I'm not sure if the promised completion timelines for these are realistic. Kya lagta hai, will they really finish on time? Also, kaun se areas like Khairpur Gurjar ya sectors near Aqua Line extensions will see the most appreciation? Trying to figure out if there are still affordable investment windows around.