Saw the trailer and the season premier of Season Two at Celebration a couple of days ago and I was totally blown away.
Tobar really summed it up by saying that Season One is all about set-up. If you have given up on this show before the finale, it's akin to giving up on the original Star Wars before they get to Mos Eisley - you don't even know all of the characters yet! The best parts are yet to come, just like in Rebels Season One.
And so far, Season Two is kicking off much like Empire. It's dark and there's not a lot of hope. They're moving out into a bigger galaxy and bigger stakes. There are new enemies to fight, but there are new allies out there, as well.
All in all, I am really excited for Season Two.