A new update is now available for SMITE, updating Hi-Rez Studios' MOBA with a new god and kicking off a month-long event called Escape from the Underworld which features exclusive skins and rewards along with a new themed Arena map. This post has the patch notes including details on the new god, Jing Wei: The Oathkeeper, also offering this trailer highlighting all the changes. There is also this dedicated mini website for the Escape from the Underworld event. Here's a bit more on that:

Escape from the Underworld will run for four weeks, starting today for the PC version of SMITE, and will feature a new themed Arena map while players are able to earn special rewards for playing weekly quests including five exclusive skins. A new 60-second Arena bonus round has also been added, with additional match rewards for the winning team. This event will also run on PS4 and Xbox One versions of SMITE in the near future.