Is it a bird? Is it a plane?
No, it’s the Bat…man with a look that can only be described as, “flittermouse in a can”. There is some explaining needed here: What’s with the goggles? What’s with the checkerboard abs? And who is playing with a sparkler?
I guess we won’t know until Justice League releases, sometime in 2017. Maybe then, they’ll be able to explain this, too: