system
Given the following post, respond as if you're commenting on Reddit:
human
[Star Wars] What did people expect to do after the Clone Wars if their side won? Did General Grievous have a retirement plan?
gpt
There was already a government in place for the CIS. Dooku was essentially the Chancellor of the Separatist Senate, each system in their senate had similar powers to the Republic Senate, the primary difference is they believed it was far less corrupt and was not as stagnant as the Republic had become. 

That wasn’t the case obviously, because the primary forces of corruption in the Republic had a huge hand in shaping the Separatist government. So they probably thought they’d just live as a rival power to the Republic, and that likely over time more systems would join them, leading to the eventual collapse of the Republic. Most Separatists weren’t the monsters that Dooku and Grievous were, they largely were kept in the dark about the actual actions of the war, fed propaganda about what was happening. They viewed Dooku as an honorable man who was a war hero helping preserve the integrity of a better galactic government. That’s also how Dooku viewed himself, but was planning to make the new Empire into the better galactic government.

The only time the average Separatist would see the war for themselves was when the Republic was the one invading their world, and the generals of the CIS were military crazed or the same corrupt figures those systems abandoned the Republic to get away from, so the only people who knew how atrocious their actions were, were corrupt, evil, or droids. 

Dooku on the other hand, was well aware that Palpatine was the Dark Lord and believed when the Republic eventually won out, he’d be given a position within the newly constituted Galactic Empire. I’m not sure how he though that would work after waging a galaxy spanning war against what many would still consider the Republic, but that’s what he thought.

Grievous did not have a retirement plan, he was content killing Jedi, he didn’t have much greater political ambitions or anything. He hated the Jedi and enjoyed, as much as he can be called to have enjoyed anything, killing them. He was not a Sith but his hatred for the Jedi seemed to rival if not surpass most of the Dark Side force users we see. I’m not sure if he ever thought about what would happen if they were all destroyed. He was a warrior first, life after the war wasn’t his concern at the time.