What is in an alternate universe, Sheev is killed by Windu and General Grevious survives Obi-Wan and escapes? How would the Clone Wars end, if they would? Would there be a final peace? If so, what would it be?
According to canon, Grevious' survival wouldn't have mattered, because he's a complete goof.
Guy gets out classed by everyone, from small girl jedi wannabe to Kit Fisto.
Why did they every even create him /tv/?
His early characterization was a Military Genious and Killing Machine. But Lucas wanted a coward. Also the droids become too much of a joke. Even so, I think there's mentions of him using biological weapons and other terror tactics along the way.
The droids got updated programming that made them even stupider. Only George could think of something like that.
>Grievous survived, Palpatine killed
The war continues for a while, CIS loses, gets re-integrated to the Republic.
Republic and the Jedi Order continues to stagnate and become more complacent and corrupted, until another person turns the Republic into a dictatorship.