Ever since the first movie, Aniplex has teased a sequel to the first movie Sword Art Online Progressive. Today, Square Enix released a visual image and trailer for the next Sword Art Online Progressive movie. The new movie is titled Sword Art Online -Progressive- Scherzo of Deep Night. This movie is planned to be released in Japanese theaters on Sept 10th. Singer Eir Aoi will perform the movie’s main song “Shinzo” (“Heart”) and it will be produced by n-buna from rock duo Yorushika.
Movie synopsis according to YenPress:
It’s been just two months since they were trapped in the game of death that is Sword Art Online, and Kirito and Asuna continue their struggle at the vanguard of progress through the game. The fifth floor of Aincrad is a mazelike ruin, and the two dare to take pleasure in raiding it for the treasure it contains. Upon returning to the fourth floor, it’s time to do some questing on behalf of the Elf Lord Yofilis–but here begins Asuna’s discontent, for in doing so they will have to face her least favorite monster ever…
source: Crunchyroll
Matt-in-the-Hat 
This is looking excellent! Sword Art Online’s still got it, definitely can’t wait to watch it. I haven’t seen the first yet so maybe I can do a doubleheader
I can’t wait to watch this new one next. I’m still waiting for the DVD release of the first movie.