Aside from Ben Affleck looking like a good Batman, I can't say that I was particularly hyped by the BVS trailers.
I didn't love MOS, but quite liked it, and BVS trailers looked like they were doubling down on the Zack Snyder-y style of it all , which I don't exactly love (as opposed to MOS, where I feel like it's a bit more "Nolan-reigned in" - except for the disaster / action porn in act three and other stuff).
I have a complicated, but non dramatic, relationship to the DCEU (there's good stuff in there), but it's not my favorite era of DC.
At the same time the New 52 was launching in comics which, too, despite the good stuff, wasn't my fav era.
All in all, I'm thankful that DC moved on both in comics and movies. I'm happy and excited again on both fronts.