For those of you unfamiliar with the Camelot 3000 arc, it revolves around classic characters from the Arthurian legend who find themselves reincarnated in the year 3000. All of the major players appear, such as Arthur, Merlin, Guinevere, and Lancelot, as the Knights of the Roundtable band together to face off against an alien invasion. The exact manner in which the Legends will factor into the story remains a total mystery, but that description alone seems right up their alley; even if the episode isn't a full-blown adaptation of Camelot 3000, the DNA of the story will likely be present.