Oddly enough, while I was in the same boat as you (and I did get to meet Caity Lotz at a con, and she was awesome), this trailer kind of intrigues me. And I've been just as hard on this show as anyone here. I don't expect they will be stuck in the past for too long, and I'm kind of curious how they will play it.
I'm also probably going to go back and skim through last season, focusing mostly on Sara's story, because that interests me. The rest just looks like crap.