Nah, it just means that in the next space tavern we'll meet a stranger named Bommander Bhepard.Bioware has made it absolutely clear...you are to forget Shepard, move along, nothing to see here. And for sure this decision to end Shepard was Bioware´s and theirs alone. I suspect EA were against killing off Shepard. Would Apple kill off the i-phone while there is still huge demand for it? Or howabout heinz stops making baked beans. Its an insane proposition. So there must have been really strong reasons to kill Shepard arc off and i reckon it was the development would be chaotic going forward dealing with everyones LI or whatever.
Don't worry in the Citadel DLC they established that Shepard was cloned, so they'll just bring another Shep-clone back. BUT, BUT... This one will be controlled by the Leviathans. Yes. The Leviathans was in his mind so, they will upload all the memories of Shepard up to the point when he met them. So the Shepard clone will think that he is the real Shepard and that he does good, but he will also be indoctrinated. So Shep-clone 2.0 will be the main antagonist in ME4. I know it!