After many MANY years since the anime series had apparently abruptly concluded and no word was spoken of it – Rozen Maiden is set to receive a third anime season later this year. It seems that alongside the new anime series, there is also a brand new video game in development in the series for the Playstation 3.
Information on this title is currently limited, but with any luck we will be hearing more about it in the future. Given past experiences however, there is a sizable chance it will be either a visual novel or fighting game.