Hm.. I'm still waiting on my opinion. I'm going to wait a while before I can form a full opinion, but right now, for me it's safe to say that the graphics need a little bit more work. But in 10 months, they are definitely going to be improved, because of course, this is just a trailer.
But the battles... the battles. To me, the graphics are amazing and I'd like to see them when they're even better. The only thing: I hope you don't have to wait 1 whole minute just for a visual to finish.