There was a thread on this yesterday. They're discussing what a terrible idea it is over there.
You people need to grow up and deal with the fact that life goes on, regardless of how much you want to live in the past. It's also such a dumb idea. The game worked, just barely, in the past because the higher server populations gave you better odds of collecting people to do stuff. Now with lower populations, that model would be unsustainable, and given that this server would have
still fewer people makes it work even worse than if the entirety of the current game were rolled back.
SE didn't create Abyssea and all the subsequent changes for the Hell of it. They did it because they were losing subscribers and people hated the way the game was. So yeah, that's a winning idea. Create a separate server for the content almost nobody wants.