http://www.mudspike.com/qa-with-matt-wagner-producer-eagle-dynamics/
Can you update us on progress towards DCS World 2? In what quarter might we expect a release?
The team is working very hard on DCS World 2, with the primary focus on the new graphics engine. DCS World 2 is in pre-alpha, internal testing but we hope to make it available for open Alpha testing in the first half of this year. I am leery to give a quarter, much less a day, because we continue to find new blocking bugs during internal testing and finding new ways to improve the product. I can assure you that no one wants to release DCS World 2 to the world more than the Eagle Dynamics team. However, we see no point in doing so if there are blocking-level bugs that make it unplayable.
short version: when its ready