The previous thread for this has been quite inactive, so I thought I'd make a fresh one for discussion of the recent new details.
An official website has been launched, which displays artwork of the Xiaolin and Heylin warriors (they're all back!). There's a new temple, too. The site also claims that a new monk will be joining the Xiaolin side, and it's also apparent that there's a new adversary. Chronicles' Facebook page features an image that uses the subtitle "Shoku Showdown" (Raimundo became a Shoku Warrior at the end of Xiaolin Showdown), but that doesn't seem to be used elsewhere.
I don't mind the new art style too much, though I do prefer the previous one. Their new robes are slightly strange. I'm very excited for this; I just hope it stays faithful to the first series.
e: The new enemy is called Shadow, and the new warrior is... Ping Pong. His element hasn't been revealed, though it seems like it could be Wood. O.o