would you leave or stay ?

You guys do realize one of most famous and long lasting private servers is an old .62 or something right? There's obviously a market for it, and considering 75% of the population has dropped in like, 4 years, I feel it's a bigger market than what it is currently.

There is a difference between going back and not moving forward. Sure, there's a market for it, and Nexon possibly could open a separate server for an older patch version if they wanted, but that is different from reverting the current servers back.