The World of Warcraft®: Burning Crusade Classic™ Character Clone service will soon be cycled out of the Battle.net® Shop. The service will be on sale until its retirement, and you'll be able to get a Character Clone for up to 66% off to keep those characters active on both Burning Crusade Classic and WoW Classic Era realms.
For a refresher on how Character Clones work and which characters are eligible to use this service, refer to our Playing Ahead: Making Choices in WoW Classic blog post.