Good idea, but Master server how it was in Korea can't work for long time, let me explain it.
Part 1: Beginning of Master server.
It was a classic hardcore Aion, how much hardcore? even for me, as oldschool player from 1.9 until today it was hardcore.
But developers make a few changes to game mechanic:
1) maximum level: 45.
2) Classic locations from 1.5
3) Without Asfel/Ariel debuffs
4) No bards, Gunners or Aethertechs
5) No GP
6) All items trade able, including AP sets (as in 5.x)
7) If you fail to upgrade item you destroy it (as in 5.x)
P2P model without P2W content.
It was a classic but new version of game, alternative solution for main thing in game but with old content and NO P2W.
There was only 1 dungeon, fact that force players for more pvp in open world.
Part 2: Troubles begin.
Very fast after start the facts that Asfel/Ariel debuffs don't exist and that pvp in open world was very profitable made process of leveling for new players very hard, even more then it was at 2009.
In one hand NCsoft made main version of game totally P2W, but keep Master server clean from shop (only with skins and small staff). NCsoft realized that they could make a lot of money from players in Master Server and add to it same P2W content as it was in 5.x versions.
In result NCSoft lost tens of thousands players and close dozens of servers and Master server at all.
Master server is good? Yes, it perfect Aion as it was before 5.x.
We need Master server here with publisher as GameForge? totally no, better to play at pirate servers that much more loyal for players.