The original game was released earlier this year and became a big player in the iOS and Android mobile gaming space, despite its brief length. The Forgotten Shores expansion, which will be available as an in-app purchase, is rumored to double the content of the game.
The November 13th update will focus on quality over quantity, according to Ustwo. Not much else is known about Forgotten Shores at this point, including a potential price point, but Ustwo did hint that the expansion would introduce new architectural styles into the game, and even begin to incorporate "landscapes."
The original Monument Valley game can be downloaded from the App Store for $3.99. [Direct Link]