By now you have all watched AOU and it has the usual marvel and non marvel easter eggs ranging from Stan Lee comeo, wakanda/Black Panther, Hellen cho, The Crimson Cowl, Star Wars hand slice(twice), Peggy, Veronica, Infinity Gauntlet and many others. I am not going to go into details on the above easter eggs but i will discuss the only visible and plain to see easter egg everyone seems to have left out. Maybe its not an easter eggs when its hidden in plain sight.
ATTILAN;
In the final act of AOU, Ultron's big plan for the Vibranium he got from Klaue was not for armor upgrade but for building amachine that launches part of Sovokia upwards with intensions of releasing it to the ground leading to global extinction. When the city was mid air, there was little difference from the usual Attilan floating images from comics we have seen through out the years.
If marvel had showed Sovokia in mid air in one of the trailers there's no doubt that fanboys would think it was Atillan. With the way Marvel is puashing Inhumans, why not give everyone good treat before the real Attilan comes in 4 years time. So what do you guys think.