Holy crap. Dude, your animation skills have gotten INSANELY better since Sonic RPG eps 1-4. I was a little disappointed when there weren't any voices in this trailer, but it didn't bring down the killer scenes implanted in ths trailer.
2013 tho, huh? Heh. I've waited 4 years for Sonic RPG. I suppose waiting another 6 months won't do me TOO much harm. Just remember, Sonic X Cosmic Chase took a good few years to come out. The animation here seems very similar to that, so try not to make it seem like you're copying the style from that movie or anythin (Not sayin you are, just a piece of advice).
Either way, kudos on the trailer and I'm hopin to see the full thing March 2013!