…Oddly enough, there is a surprising lack of alternate history novels and short stories that play with the consequences of Julius Caesar not being assassinated. Probably because said assassination is widely deemed to have resulted in the eventual formation of the Roman Empire, and most people who do Roman-themed alternate history prefer to have the legions conquer the Mississippi valley or face off against the Chinese or whatnot. Not all, of course; but most.
I guess that the assumption is that the Republic would have lasted longer, at least under that name. Would Caesar’s successor have returned the government back to a state where the Senate had actual power? SM Stirling argued something similar in passing in one of his kinda-non-alternate history novels, but I’m not entirely certain.
Still: you see somebo… ah, that joke isn’t funny anymore.