Do any World of Warcraft private servers not require any expansions

Yes they do you just have to find one. I don't like to play on them though. I play on more recent ones. I would go fetch you a link but i have to be sure its not a virus witch is tricky so go look it up and wether or not it has a virus is your risk to take. + I don't want blizzard to see this and try to shut the server down because they are much to strict.