Just Cause dev revealing new game at E3?

Just Cause developer Avalanche Studios co-founder Christofer Sundberg today released a new image for what appears to be one of the studio's three unannounced games.

"Is it a bird? Is it a plane?" Sundberg wrote of the image.

No further information is available, though the image appears to be from the same gameworld as a shot released earlier this month. That image contained clues that it could in fact be Just Cause 3. Whatever the case, Sundberg teased this game could be announced during the 2013 Electronic Entertainment Expo in June.

Sundberg also took a shot at "experts" making predictions about the viability of the game business in 2013.

"2013 is also the year of the geniuses! When will all the experts actually prove something? As I've said, I don't have a solution but we try," he said. "As in try by actually working hard on sandbox games and biz models, not just tweeting and yap in GDC talks. F**k 'em! Makes me sick…"

Avalanche has previously confirmed that one of its unannounced games--Project Mamba--is in development for next-generation consoles and PC for a launch in 2014.

Avalanche is best known for its well-regarded open-world action franchise Just Cause, from which the most recent installment launched in March 2010. In September 2011, the company released Renegade Ops, a vehicular dual-stick shooter that received a favorable critical reception.

For more on Avalanche Studios' latest body of work, check out GameSpot's review of Just Cause 2.