One of the most oddly tragic "What If?" stories in Hollywood history is the sordid saga of Jared Leto's Joker in Suicide Squad. From what we know, Leto committed about 1,000% both off-screen and off—to an obnoxious, co-star-nagging degree—to a character vision that was flawed from the start, all in exchange for roughly 8 minutes of screentime and zero spinoffs or sequels in sight. With Joaquin Phoenix's Joker earning acclaim and the Harley Quinn-focused Birds of Prey having no time for Mistah J, it seems we all collectively moved on recently …