Bioware have stated that Mass Effect 3 will be utilizing some missions that didn't make the cut in their huge hit Mass Effect 2.
In an interview with OXM, Mac Walters, the lead writer for Mass Effect 3 revealed that a series of side missions taking place on the Citadel were removed from Mass Effect 2 but will appear in next year's sequel.
"There was a Mass Effect 2 plot that was a kind of a callback to the first Mass Effect that was going to be on the Citadel, and we cut it. But now it's made a resurrection in Mass Effect 3, so I'm happy, but I can't say what it is."
"That's the nice thing about trilogies, sometimes you get a second chance."
Mass Effect 3 will also feature the Galaxy at War Co-Op multiplayer mode, Which also reacts to the choices made in previous Mass Effect games and will have an impact on the third game's story.
Mass Effect 3 will be available on Xbox 360, PlayStation 3 and PC from March 6th in the US and March 9th in Europe next year.