I've been following Drox Operative, developed by the makers of Din's Curse, since its initial secretive tweets and earliest features announcement from developer Soldak. The last decade has been slow and unimaginative for the X4 (expand, explore, exploit, exterminate) and space genres aside from the immersive X2 and X3 series, EVE also comes to mind, although it's more of a meat-grinder than a true space exploration game.
