Rumpurs have it that the fourth and upcoming Mass Effect game is looking likely for release early next year. The adventure will not focus on Commander Shepard but on a completely new character and Bioware's Chris Wynn tweeted something about the graphical fidelity a few of days ago. Apparently the characters are shaping up nicely in the game.
"Busy showing and telling the latest Mass Effect progress to the team. The amount of detail on the characters is insane."