What happens after SoM

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.

Not entirely true. What we know is this:

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.