The most buzzworthy was the announcement of a new character, Savage Opress. Is he really Darth Maul’s brother? George Lucas said it outright (4:45 here) when talking about the cartoon at the Main Event, but Filoni hedged around it, so we’ll see what the series actually brings.
But! “There will be some connections to the original trilogy in Season 3,” Filoni said (on video!) Looks like I’m going to be increasing my TCW count.
Also making waves was the appearance of Kamino, Dathomir and even some Republic Commandos. But fan or not, I have to admit that just sitting around and watching Pablo and Dave talk was worth the price of admittance.