No further update on how the game is progressing was provided, but the representative said South Park: The Stick of Truth is still "scheduled for release in calendar 2013."
Ubisoft purchased the game for $3.2 million in January as part of the THQ bankruptcy auction.
South Park: The Stick of Truth was supposed to launch March 5, 2013 for Xbox 360, PlayStation 3, and PC. If past arrangements still hold, downloadable content for the game will come first to Xbox Live.
Former publisher THQ delayed the game in November, with then-president Jason Rubin saying he believes the game has the potential to be one of 2013's biggest.
"I believe South Park's market opportunity is significant," Rubin said at the time. "It is shaping up to be one of the most anticipated titles of calendar 2013. It is also an expansive title, encompassing multiple television seasons' worth of content. THQ is committed to giving gamers no less than the rich South Park game they have been waiting for and deserve."
South Park: The Stick of Truth is one of three titles developer Obsidian Entertainment is currently working on. The studio is also building isometric role-playing game Project Eternity and a next-generation title.