Good luck finding hundreds of new mods.
I can see things going very sour if they choose to replace long standing mods.
As opposed to the current state of affairs, where it is someone you didn't pick, also with zero vetting.
The current set of volunteer mods are by far Reddit's largest asset - especially on the major subs.
/s
That means they'll let these subs go dark, claim they're unmoderated (even though they could take over them right now), and expand their internal moderation team.