There being open Aether and Crystal worlds now is one thing...

[Aidorouge]

Disregard this.

[GraceHorizon]

Yeah you’ve usually been able to get into other servers on Crystal. It’s never been fully closed like Aether.

[RedLolly]

I find Lamia is always pretty crowded in the current main hubs. Hunt trains and special FATES always have enormous crowds. It's a more than healthy data center.

And that's likely why it's closed. Not that it's full to bursting, just that others have fewer players on average. So the game will push players there.

[AyahM]

Primal is congested because it was the only thing open and everyone transferred there from Dynamis for an entire patch length.

No servers except Aether can be realistically “congested”, but even those servers are not typically congested with natives. When I lived on Aether over 50% of people were visiting from Crystal, Primal & Dynamis. The plain truth is: the game needs cross region party pairing to feel full again.

Will you transfer again?

[SalamanderIX]

All of Aether, Balmung and Mateus are for sure a few steps above Primal (and other Crystal) servers for population. It has to be based on recent swings of activity a bit more than total activity.