i'm going to be both positive and not positive here.
positivity:
the trailer is awesome. everyhing looks awesome. i really like the set-up and darkness of it all.
what i don't like though (and this is just nitpicking, because the shot in itself is like breaking the internet awesome):
the nose in this shot. it comes off to sharp imho, too 'beaky', too night-owlish. i would have preffered it to be slightly smaller or atleast less reflective of the light. it looks too big compared to the head/ears.
it's a minor detail in this shot though, the shot itself is simply amazing and full of tension. i like it. pure badass.
the second thing i don't like; batman in a mech suit. I know the comics show this, and it's true to the 'mechanically-powered-fist-blow-to-the-chin' to superman from the comics, but to be honest, i don't like it.
personally, i think it makes batman look more weak and cowardly. Offcourse it's easy as can be that a 'normal' human-batman is zero match for a alien superbeing. so there must be some form of 'empowerment' to be able to engage into battle. I just don't think a full mech-suit, especially one that looks this clumsy and unwieldy imho as this one.
I liked the 'exoskeleton' mechanic aiding devices in Nolan's batman; where he has it around his arms to punch through walls [ and cut through steel ],
and the leg exoskeleton which fixes his knee injury and makes him kick through concrete.
personally, i'd rather have seen something more like that instead of some sort of 'hulkbuster' iron-man suit-like 'tank' suit.
nevertheless, i'm still okay with it. just some missed opportunities imho.
can't wait for this movie. i want it now
