User blog comment:JediSpectre117/Citadel Trailer is out REPEAT OUT !!!!!/@comment-1786741-20130306020241/@comment-4950455-20130306032756

What are you, Spider-Man?

Honestly, based on the way they were advertising this DLC, I was pretty much expecting an excuse plot from the get-go. It was described as a final send-off to the characters, not some big epic confrontation.

Or for that matter, why didn't Cerberus create more Shepard clones?

This one actually does get answered back at the beginning of ME2. TIM wanted the real Shepard, not a knockoff. An army of clones wouldn't have cut it any more than one would have.