I have no problem leaving Shepard behind, so long as his ultimate fate is finally addressed. Of course, this is never gonna happen, as it would hurt the butts of those with synthesis dreams of electric Shep. As it currently stands, I have difficulty in believing I'll be able to invest in a new protagonist, a new crew, a new ship and a new galaxy when the old ones are still trapped in slide show purgatory. Lost was less ambiguous.
I'd like to add, what the hell is going on with this 'Shepard's story is over' echo chamber. The last I checked, my Shep was alive but buried under rubble. If someone could kindly direct me towards this magical edition of the game, where Shep and the core Mass Effect crew have their stories and fates ended (I'd like to know what happened to Tali, and how long the recently fixed Normandy searched for Shep), I'd be grateful.
Of course, Bioware could be keeping all this close to their chest for a reason, and everything I'm bitching about could be addressed in upcoming trailers, or even the game itself. Though I doubt it, I guess time will tell.