So when is the new Mass effect 2 coming out?
Sometime in 2010.
Maybe it's possible that the Alliance has Shepard and Co. going off the grid, assembling a crack team of soldiers and scientists to take on the Geth and the Reapers.
So, kind of like the A-Team in Space, with hot alien chicks.
He's listed as KIA so no one is looking for him.
That would give him the designation as MIA (Missing In Action). KIA means that they have confirmation that s/he was killed on the battlefield.