She has the Exile gather the Jedi Council while training them so she can show off the Exile as the 'right' way to be a Jedi. And if the plan fails, she just kills the Force.
Since she was part of both the old Jedi and the old Sith, the end of her plan has her dying. The Exile trains his/her crew to become the new Jedi Order, and by the end of the game, the old one is all dead, all killed at the hands of either Kreia or her pawn (you). The solution? Destroy them and create a new, stronger version of each. Kreia had been both a Sith and a Jedi, and hated both.
Or at least that wasn't the only possible outcome.
