Known dates for Marvel TV Series on Disney+ ;
Aug 2020 :
The Falcon and the Winter Soldier.
Early 2021 :
WandaVision.
Early 2021 :
Loki.
Mid 2021 :
What If.
Late 2021 :
Hawkeye.
On top of this are the known Star Wars TV Series ;
Nov 2019 :
The Mandalorian.
Feb 2020 :
Star Wars: The Clone Wars (Season 7)
Sometime in 2021 : Rogue One Prequel (Unnamed)
In other words, 2021 is looking like a good year.