The name wipe has finally occurred. Anyone who had inactive accounts simply have had "_OGP" appended to the end of their name. I was originally worried that all old names would have been changed to the "Elias_Citizen_#####" format, so this wipe was nowhere near as bad as I thought it was going to be.
Supposedly anyone who logs on in the future and finds themselves with a changed name they don't like can ask the Helpdesk for a name change.
Also, I checked the guild and found that it was still intact, though about half the members now have "_OGP" at the end of their name.