The one thing that I took from this leak? The character name for Ben Mendelsohn's character. Well, actually his TITLE.
Ever since the ROGUE ONE trailer broke, people have been going crazy saying "GRAND ADMIRAL! GRAND ADMIRAL!" OMG, people have Thrawn on the brain!!! But if we go purely on movie material, those Imperial uniforms with the white tunics are only seen on officers of the Imperial Security Bureau. Wulf Yularen has that sort of uni, and he's identified as a Colonel in the ISB. There are other ISB officers seen on the first Death Star, too. Well, the title held by Ben Mendelsohn's character is that of Director. So is he perhaps the Director of the Imperial Security Bureau, tasked with making certain that information about the Death Star is kept secret? That's certainly what it's looking like to me.