Who wants to see more of Jared Leto's Joker?
And Margot Robbie's Harley Quinn.
Rumor has it a "Joker-and-Quinn Origins" movie is in development hell, and it hasn't been moved forward because Robbie hasn't signed on yet. And she hasn't signed on because Leto was such a twerp during the making of "Suicide Squad".
Personally, I think Leto was so unimpressive in the role that his attempt at villainy ought to be quietly forgotten, but then "Suicide Squad" made a lot of money even if it was terrible.