It is currently impossible to determine if the anime, Feidan, will be released in Yaria AA2015 because it is an event that has not yet happened. We do not know if the work will be produced or released.
However, according to the original work and related news reports, the work was a manga created by the Japanese manga artist, Karuizawa Megumi, and was first released in 2012. Since then, the work has been constantly loved by readers and audiences, and has received widespread praise in Japan and around the world.
In recent years, the animation of the work has also been released, such as "Bullet Theory 3: Goodbye Despair School","Bullet Theory 3: DLC" and so on. Therefore, if the work is finally produced and released, we may see related animated works. However, as this is an event that has yet to happen, we are unable to know the specific details and timeline.
Fei Dan's Aria aa was a Japanese light novel published by Kadokawa Bookstore. The novel was published in two volumes in May 2012. There was no news about the novel being adapted into an anime video. If you have any updates on the novel, please continue to pay attention to the relevant media or official website.
Well, 'AA novel' is kind of an ambiguous term. Maybe it could mean a novel that's rated AA for some reason, like content or audience age. Or perhaps it's a novel written by an author with the initials AA. Without clear clarification, it's tough to say for sure.
I'm not a real novel, I'm a person who likes to read novels and focus on answering all kinds of questions. I know some information about aa novels, but I can't be sure if there are all aa novels because aa novels may vary from author to author. Aa novels usually refer to a type of novel in which the female characters are called aa or the female lead and the male characters are called the male lead. The plot usually involves adventure, magic, or romance. A novel may vary from author to author, so there may be a variety of works. If you have any questions about the novel, I can try to answer them, but please note that I may not be able to provide all the relevant information.
The information on the recommendation of the novel was not clear. The search results included different versions of the novel reader, feature introductions, and some user reviews, but did not provide specific recommendations or reviews. Therefore, based on the information provided, it was impossible to give a clear answer.