Well, as far as I know Theseis is an adventure game that is supposed to journey back to ancient Greece in Athens. The game looks like it will be for PC and possibly some next gen systems. I am quite excited about it as the graphics look picturesque and the story unique. Culpa Innata is an adventure by an independent company that delves into a futuristic utopian society similar to that of Huxley's Brave New World. Very smart and has much potential. The last, the City of Metronome looks the most innovative of them all; the game is based of sound entirely. For more details see these links to their homepages.
http://www.culpainnata.com/
http://xbox360.ign.com/articles/624/624510p1.html
http://www.tarsier.se/metronome/
Hope you enjoy the wait for these games as long as I have. Their development will be an exciting one.