Aang aired since 2005 (i'm still in elementary school), I FUCK*NG IN LOVE WITH AVATAR (not the BLUE avatar) and i just can't believe about this! The sequel title is 'LAST AIRBENDER : LEGEND OF KORRA' (YUP! Korra is brand new avatar :>) Here's some info about the show from wikipedia :
The series will focus on Korra, a teenage female from the Southern Water Tribe and the current incarnation of the Avatar, who, according to the president of Nickelodeon, will be "hotheaded, independent, and ready to take on the world". She has already mastered use of Water, Earth, and Fire, but needs to master Air. The character was partly inspired by Avatar Kyoshi of the original series, who the creators say was widely well-liked among fans. To avoid repetition of Aang's adventures, the creators set the show in a single place, called Republic City, a steam-punk metropolis founded by characters Aang and Zuko and built after the 100-year war between their peoples, wherein live people of all nations, benders and non-benders. The city's police are metalbenders (a subset of Earthbender) taught their art by Toph Bei Fong of the original series, and led by her daughter. A group of anti-benders, called the Equalists, use chi-based blocking skills to subdue their enemies. A concept drawing of the city, released with the announcement of the series, shows the city's design inspired by Shanghai in the 1920s and 1930s, Hong Kong, Manhattan, and Vancouver. Some practice bendings as a sport; but Airbending is not among these. In the show, Korra will learn Airbending from master Tenzin, son and youngest child of Aang and Katara, and will contend with an anti-bender revolution in Republic city. The final design of Korra was revealed at the 2011 San Diego Comic-Convention, along with her Animal Guide, a Polar Bear Dog called Naga. Aang has found a new breed of flying bison after the war, and there will also be new flying lemurs called Ring-Tailed Winged Lemurs. They will not appear much until the second season.
And here's the official trailer!
CAN NOT WAIT AAAAAAAAH!