Straight from the official Sony Music Japan website. Avril Lavigne is expected to release her fifth studio album in Spring 2013. This news comes along with Avril's contribution to the One Piece Film Z Themes. That's right, the theme song of the BIGGEST manga in Japan! This makes her the first Western artist to record for a Japanese movie theme. Avril's fifth album will be released through Sony Music worldwide, with Epic Records in the United States.
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Avril's much-anticipated new song is delivered only to Japan, darned big news new album arrival ago release is to spring next year (2013)!
It's not a single It's a "Alice" or "Keep Holding On" for the Japanese fans. Promo for the next album
It says above, it's a Japanese single If it's the official theme song to the movie, it will be a Japanese single, just like Keep Holding On and Alice were singles as well.
The album has never had an official release date before this announcement, how is it been pushed back?
LA Reid said that she would've probably released a single by the end of the year and she is.
The album lead single will probably come early 2013. Calm down
It's a "Alice" or "Keep Holding On" for the Japanese fans. Promo for the next album 
If it's the official theme song to the movie, it will be a Japanese single, just like Keep Holding On and Alice were singles as well.
. Seriously, i won't get my hope up too high before more details come up.