Concept trailers created by fanboys are about a dime-a-dozen, but I carry a certain admiration for those who pull them off well. This BATMAN V SUPERMAN: DAWN OF JUSTICE fan-made trailer isn't going to win any awards as far as its sound editing, BUT there was careful consideration regarding the shots, and a lot of slight alterations to already existing material to give it that BVS edge (Ben Affleck sitting in the office of LexCorp, for example). Either way, it's an impressive look of our stylistic expectations from BVS.

Here's the concept trailer via zelenks:

We'll see how the real deal matches up when BATMAN V SUPERMAN: DAWN OF JUSTICE hits theaters on March 25, 2016.