Durand seems more like Crossbones to me, but Grillo is also a solid choice (and perhaps not as obvious of one, which might be their intention). Surprised at this... I always thought an appearance by Mr. Bones was a long shot, but I guess not. Does this mean Diamondback is likely to show up too?
ATTENTION: The rumor about WB's "no jokes" policy is 100% correct. No one should ever doubt any rumor about any upcoming movie, even in cases where it contradicts rumors that have previously been reported. In those cases, both rumors are true.
In other news, Bryan Cranston is playing Lex Luthor, Emily Blunt is Wonder Woman, Benedict Cumberbatch is Martian Manhunter, and that guy from Teen Wolf is Batman.