I'm white, and I knew BP was going to pop with black audiences. I just didn't expect BP to overperform the way it is now (having it open to Deadpool numbers would've been expected, but not a $200M 4-day haul). BP is benefiting from crossover appeal with black audiences and Marvel fans alike.
Oh, they will... either that or GLC. WB knew Marvel was onto something when they moved BP up from July 2018 to February. That's when they booked mid-February 2020 and 2021 for their "Untitled DC Film" and "Untitled WB Event Film".
If WB can find a similar director who loves Cyborg and has a vision for the film that fits with the studio's -- they will fast-track it for early 2020. I don't know if they have a Cyborg script yet, but I imagine they're getting Geoff Johns to craft a treatment and send it out to potential writers.