Of course, while Smith says that he knows who the villain is, and that fans will love it, that information is only useful if we think it’s real. Even Smith himself, at first, is open the possibility that what he knows might not be entirely accurate. However, then Smith remembers where he got his info and it does seem on the level, since it came directly from another cast member. Smith goes on…
Article source: https://www.cinemablend.com/news/2475480/kevin-smith-knows-who-the-suicide-squads-villain-is-and-hes-happy-to-tease-us-about-it