Yes and no.
Yes, i think a wipe has already been decided.
No, it would still make sense even without a wipe.
Currently, being beta and with all the issues around the game not being interesting, NQ has not activated any real "abandoned subscription" measures.
But I fully expect those measures to be implemented at release.
But a "abandoned subscription" is an account without a valid DAC for several months.
If someone keeps paying the DACs for their account, their stuff will never be deleted/abandoned.