People, you're not entitled to anything. This is SE going "sorry server is full", they can't magically create more space.

Some players are going to throw a fit because they have mains on Balmung, some are going to throw a fit because they have alts on Balmung, some will throw a fit because the only reason they were in Aether was to have cross-world parties with people on Balmung, but at the end of the day, Balmung is the reason for this.

Make your alts now before the servers are split up if you want to stay together, because once they're split, moving will be a bigger issue. If you already maxed out how many characters you can make on one data center ... I sure hope SE decides to allow players to have more, because if by some bizarre reason someone has 40 characters between Primal and Aether... well that could mean all their characters end up on Crystal.