Taken from the source of ANN,
The October issue (on sale August 30) of Mag Garden’s Comic Blade magazine will announce that a third animated television season based on Kozue Amano’s Aria surreal slice-of-life manga was greenlit. Director Junichi Sato (Gate Keepers, Pretear, Princess Tutu) will return after overseeing both of the previous Aria television seasons and the OVA. The staff will largely be the same as the OVA version’s. The broadcast date has not been set yet, but the third season has been in production since this past spring.
Source: Moon Phase
Hurray for Aria fans. Now, I have to wait for it, and you will be sure that I am going to blog about this when it does come out. Woot!