What happens after SoM

[Asma-bloodsail-buccaneers]

I realize the original question was answered but since the thread was dug up for a yelling at clouds sesh, I noticed some incorrect information provided.

@Meuchelmörde-mutanus

They go to Classic after SOM is over. And then you can clone them from there.

Not entirely true. What we know is this:

@Kaivax

Looking Forward

Finally, many Classic players have asked what will happen at the end of the Season of Mastery, and here’s the answer. When Season of Mastery concludes, you’ll have the option to permanently transfer your character to an existing Classic Era realm in your region. This free service will become available for a limited time at the conclusion of the season.
While we don’t yet know the exact destination realm and specific dates, you’ll have plenty of time to move your character to a safe home before all Season of Mastery realms are permanently closed.

Clones were for characters that were on an Era server at the time of the TBCC pre-patch.
From the Character Clone article page https://us.battle.net/support/en/article/000285681
“A clone is a snapshot copy of your WoW Classic character taken right before the Burning Crusade Classic pre-patch.” So at this time there’s been no update so no cloning from SoM → Era → TBCC.