2016
Batman v. Superman: Dawn of Justice
Suicide Squad
2017
Wonder Woman
Justice League
2018
Flash
Aquaman
The Man of Tomorrow
2019
Shazam
Justice League 2
Batman
2020
Suicide Squad 2
Green Lantern Corps
Superman
2021
Titans or Birds of Prey
Justice League 3
Batman 2
2022
Suicide Squad 3
Crime Syndicate
Justice League 4
2023
New Gods
Batman 3
Justice League 5
End of Slate
I can see something like this working for Warner Bros if they play their cards right but the fate of their slate is in the hands of their next two films before Justice League.