Snyder says WB has plans for John Stewart and wanted to announce that themselves. Martian Manhunter was the compromise

“They were like, ‘We have plans for John Stewart and we want to do our own announcement.’ So I said all right, I’ll give you that"

(@VanityFair) #SnyderCut pic.twitter.com/lV6WflipB2

— Geek Vibes Nation (@GeekVibesNation) March 18, 2021