Classic Season of Mastery Launches on November 16, 2021
Blizzard has shared a Blog Post detailing the upcoming Name Reservation date and launch date for Classic Season of Mastery. Name Reservation will take place on November 11 and Classic Season of Mastery will launch on November 16, 2021 at 3 pm PST!

Season of Mastery Release Date
WoW Classic Season of Mastery releases worldwide on November 16 at 3:00 p.m. PST.

When you reserve a name, you’ll also choose the realm you will play that character on. There are a few additional things to keep in mind as you make your choice:
After WoW Classic Season of Mastery is live, you’ll be able to create additional characters up to a maximum of 50 characters in each of our three games:
Up to 50 characters total in World of Warcraft Classic (includes Season of Mastery)
Up to 50 characters in Burning Crusade Classic
Up to 50 characters in World of Warcraft and World of Warcraft: Shadowlands
Characters that were created for the WoW Classic Season of Mastery Open Beta will not be available to use in WoW Classic Season of Mastery.
For the name reservation period only, we will have a limit on the number of characters that can be reserved on a realm. When the realms go live, the limit will be removed.
To create a character and play WoW Classic Season of Mastery, you will need to download and install the client first.
Open the Battle.net desktop app and select World of Warcraft in the game selection menu.
Select World of Warcraft Classic. If you have more than one World of Warcraft account, you’ll see a second dropdown for Account. In that column, select the active account you want to play on.
Click the Install button. You’ll see an installation progress bar that will show you when the installation is available to play.
Once the installation is complete, click the Play button.
You’ll need to select the Season of Mastery realm you want to play on which will be identified in the Realm list. Then select Create New Character. You’ll be able to choose your faction, class, and race, as well as fully customize your new character and name them. If you change your mind about a character and have already reserved one, you will need to delete the one you made. Please note, the name associated with the character you deleted will be immediately available again to be claimed.
Before you put your plans too firmly in place, we encourage you to gather your allies together to select your new home realm. If you’re looking to reconnect with your old friends and guildmates, be sure to check out our Classic Connections forum.
Once you’ve created your new character, all that will be left is to synchronize your chronometer with your friends and allies and prepare for your world (of Warcraft) domination! We’ll see you in Azeroth at 3:00 p.m. PST on November 16!