Zach Snyder Tweets Out Odd Pic, Could It Be A Hint?

Batman v Superman: Dawn Of Justice director Zack Snyder tweeted out this photo yesterday of what appears to be star Henry Cavill dressed as a Jedi.  It got us to wondering if there is more to this?  With Comic-Con this weekend, is Snyder perhaps leading to an announcement that maybe Darkseid is in the movie, or at least on his way to the DC Cinematic Universe? It could be or perhaps Snyder was just bored with Photoshop.  We shall see....