I have not independently verified this, but according to rumors, tweets, texts, etc., there apparently will be a convention in 2013.
In the mean time -- here's somethings I've picked up along the way on the convention blogs and tweets and stuff
* William Shatner WILL be at the convention filming and interviewing people for his web series (or something) he's doing with Creation Entertainment. He was at Adrienne's meet and greet in Venice on Thursday evening. Apparently, according to the XMC (Xena Movie Campaign) peeps, he was sporting one of their bracelets. As was Adrienne, Katherine and Brittney Powell.
* Speaking of Brittney, she broke Creation's rule about free photo ops and was promptly escorted away by staffers.
Get updates as they happen (as I or other people have a chance to post 'em) at the Xena Online Community