Signed! So much yes! This will greatly help control the population of servers. If people see a server is ready to bust but isn't quite there, they'll often opt for a lower populated server (unless they have friends waiting). Instead of leaving us in the dark and having SE just randomly shut off the ability to create new characters on a server, which can really ruin the game if a friend is just a little to late.

This is a feature in WoW and it greatly affected my choice when picking a server. (not saying I want a WoW clone, just that it is something that is proven to work)