Here is a list of all the interesting/insightful reveals from the Feige AMA. These are purely about the MCU and it's future
>We will hear details on Phase 4 “SOON ENOUGH”
>The Disney+ shows will weave “TOTALLY AND COMPLETELY” into the film universe
>Nothing was mentioned about existing Marvel TV series in the entire AMA (which leads credence to the theory that they are essentially non-canon, and Kevin will get proper creative control over all the new Disney+ shows)
>THERE ARE PLANS to reintroduce The Ten Rings and the ‘real Mandarin’ from Iron Man 1 and One-Shot “All Hail the King” into the future MCU
>Some Marvel characters that he’s loved for many years that are heading to the MCU “SOON”
>There is potentially more cool Hulk stuff coming in Phase 4 (similar to the cool Hulk stuff from Ragnarok, IW and EG)
>The MCU is planned specifically 5 years in advance, with a general plan extending “much, much further”
>They are looking into new and “fun” ways to explore the world of the MCU similar to the Marvel One-Shots
>He loves bringing back characters that people think they’ve seen the last of
>It is all but confirmed that Hulk (“Smart Hulk”) ensured the safety of unsnapped people when he brought them back (aka people in planes when they were snapped etc)
>Cap was always worthy of Mjolnir and was simply being polite in AoU
>Stan Lee read the story of Endgame but not any cut of the film before his passing
>They began discussion on adapting the Infinity Gauntlet saga in 2012, decided to do it as 2 films in around 2014, and started story specifics during the production of Civil War (2015ish)