"Detonated the fleet" sounds really awkward. "Destroyed" would have been a better choice. But I guess something had to sound weird, because they made the name of the movie sound awesome - "...that takes Star Trek Into Darkness." *thunderclap*
Cumberbatch as a "one man weapon of mass destruction" sounds awesome. I stick by my "Starfleet-bred Augment" theory. Not Mitchell or Khan, but close enough to the latter for AICN to have called him that.
It sounds big and epic, turning Trek on it's head (again) from the outset. I can't wait!