"Batman v Superman: Dawn of Justice" director Zack Snyder tweeted a photo of himself and Jason Momoa -- Aquaman in the DC Films franchise -- hanging out as production of "Justice League" is about to get started in a few weeks. Looks like just a neat pic of a couple of folks having fun, right?

Deep in it with Jason on JL #Aquaman #JusticeLeague #Leavesden @PrideofGypsies pic.twitter.com/3BIgebQvHF- ZackSnyder (@ZackSnyder) February 22, 2016

Wait -- what's that in the upper-left corner?

Yep, that certainly appears to be a look at a Flash costume, or at least part of it. The Flash is scheduled to be played on the big screen by Ezra Miller, appearing in "Justice League" before highlighting a 2018 solo film. (With no known ties to the current hit "The Flash" series on The CW.) Presumably, next to the Flash costume is Aquaman armor. And speaking of Aquaman...

Is that concept artwork for Mera, the Queen of Atlantis rumored to be played in the James Wan-directed "Aquaman" solo film by Amber Heard? It's not clear yet, but certainly seems possible.

See any other clues in this picture to the future of Warner Bros.' DC Films franchise? Put on your sleuthing hats and let us know in the comments.

"Batman v Superman: Dawn of Justice" is scheduled for release on March 25, "Justice League: Part One" is scheduled for Nov. 17, 2017.