Every decision the Sith Emperor has made for the last millennium has been in the service of one dark goal: the complete annihilation of every living thing in the galaxy. The Emperor's desire is not destruction for its own sake, however. He is not a nihilist. The Emperor intends to feed on the galaxy's extinction and draw that energy into himself, giving him true immortality--and a godlike mastery of the Force.
The Jedi can only speculate on what the Emperor will do if his plan succeeds. Does he intend to preserve any followers, or live on alone? With such unlimited power, could he plant the seeds of life and raise a new galaxy from the old one's ashes?