Epic trailer, and so much new footage. But of course, they are going to use as much new footage as possible in a 2-minute trailer.
HBO needs to be careful with peoples expectations I think, as I'm now going into this expecting a very different movie; if when I sit down and watch the whole film it's 80% re-cut and colour-graded existing footage I'm going to feel duped. Hopefully, they come out nearer the release with some statistics (i.e. 50% re-cut, 50% previously unseen) so we know what we're getting. If it's 50/50 and a better movie, that's good enough IMO. But when they denied enough footage even existed for this cut in the first place, maybe that's being over optimistic.
But as far as a trailer goes, Cyborg already seems more fleshed (sic) out in these 2 minutes than the Whedon cut.