will they update the congested servers in 6.3?

[EorzeaWanderer]

MistakeNot is correct. If a server is labeled as "Congested" on the server status page, it means that no new creation or transfers are possible whatsoever, and you get bonuses for transferring off of that world. For NA, these are currently Balmung, Mateus, and Faerie.

There is another server state that appears to be similar when you create characters in-game, thus the confusion. This is the temporary "Creation of New Characters Unavailable" that will dynamically be applied to various servers depending on their real-time situation. For NA, this is currently Behemoth (but there is no guarantee that this will be the same when you read this because it changes throughout the day).

So,

- "Congested" worlds are explicitly chosen by the devs and are always "Creation of New Characters Unavailable" until the next update when they choose to lift the status.
- Other worlds can temporarily and dynamically become "Creation of New Characters Unavailable" until logins drop off, thus you can create characters during lull periods like late at night. Even "Standard", "Preferred", and "New" worlds will temporarily get this status. ("Congested" worlds *always* have this status.)

Those in this thread thinking that they were able to create characters late at night were dealing with that second situation, not the first.