Update: Though Kevin Feige remained a bit vague when we spoke to him ahead of Avengers: Endgame’s release, we now have a better idea of when to expect at least some of the MCU Phase 4 plans to be revealed.
As reported by Variety, Disney CEO Bob Iger said during the company’s quarterly earnings call that Marvel Studios would most likely reveal its upcoming slate this summer. That would neatly align with any plans Disney may have for either San Diego Comic-Con or D23 2019.
Iger also reportedly hinted that Avengers: Endgame offers some hints about where the MCU will go from here, but declined to specifically point to what in the megahit film he was referring to.
Source: IGN.com Disney CEO Says Post-Avengers: Endgame Plans Will Be Revealed This Summer