Blizzard have announced transfers from Vanilla Classic’s Season of Mastery to Wrath Classic (or Classic Era), starting today! A key difference this time around is that characters that are not transferred from Season of Mastery when it ends will be deleted. 

Transfers (Source)

Starting today, October 18, Season of Mastery players are now offered free transfers for their characters to either a Classic Era realm or a Wrath Classic realm. In this region, the available choices are:

From Season of Mastery Realm

To Wrath Classic Realm

OR to Classic Era Realm

Realm Type

Jom Gabbar

Eranikus

Whitemane

PvP

Nightfall

Eranikus

Whitemane

PvP

Mutanus

Eranikus

Whitemane

PvP

Barman Shanker

Eranikus

Whitemane

PvP

Swamp of Sorrows

Yojamba

Whitemane

PvP

Lionheart

Remulos

Mankrik

Normal

Shadowstrike

Atiesh

Mankrik

Normal

Obsidian Edge

Atiesh

Mankrik

Normal

Please exercise utmost caution when selecting your transfer destination. You are selecting either Classic Era or Wrath Classic.

Your chosen transfer is one-way, irreversible, and final.

At this time, we have a bug preventing some transfers to a PvP realm where you already have a character of the opposite faction. We intend to fix this as soon as possible.

Reminder: It is not possible for Blizzard Customer Support to modify your selection once you have initiated the transfer.

Season of Mastery realms will be permanently closed on a later date, which is to-be-announced later. Please note that when Season of Mastery realms close, all player-characters that have not been transferred will become inaccessible forever.

Thank you!