Last Airbender co-creators Michael Dante DiMartino and Bryan Konietzko, along with voice director Andrea Romano and cast Janet Varney (Korra), P.J. Byrne (Bolin), David Faustino (Mako), and Seychelle Gabriel (Asami) treated a crowd of enthusiastic San Diego Comic attendees to some secrets of what's to come in the future of Legend of Korra.
WARNING - PROBABLE SPOILERS
via Hollywood.com, co-creators Michael Dante DiMartino and Bryan Konietzko machine gunned some teaser facts about what's to come
A number of animatics also previewed action to come, including the return to the Pro-Bender arena with the Fire Ferrets version the new Lion Elephants, Mako as a Republic City police officer versus a group of robbers, Tenzin's kids on airballs around the air temple, and the visit to the Southern Water Tribe.
From elsewhere on the net (thanks to the original uploaders)