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send an email to [email protected] to know if it is still possible to recover your old chaarcter ( or open a ticket on website if you are premium)

Ops, I though it was "Medivh Merge" thread and I cant edit.

WoW folder > WTF Folder > Account > AccountNAme > Medivh >

Here you will find the folders for every charcter > Copy paste them inside the folder named "Outland"

"Level 1 and above characters that have not been played since January 2017 will have their names removed."
So those characters will lose their name ( unless he sees this thread and log them at least...