With the premiere of Foundation Season 2, it's clear there's going to be a galactic reckoning soon. Lee Pace's Brother Day is steeling up the Empire, albeit he's more play than work these days. However, he intends to be the last ruler who is a Cleon clone, which is why he wants to marry Sareth and create a dynasty outside their scientific legacy.
Source:https://www.cbr.com/foundation-season2-gaal-hari-problem/