Best solution:
Resume the old PvP and PvE servers a minute before the shutdown was announced. That way, everyone that sold their gear and gave away gold would have everything back.
I levelled to 57 on my Hunter before Nost got shut down and I prefer a fresh start side by side with all the new comers, So I'm expecting a new PvP server to roll on. Since Nost will be way more popular than it already was before it shutdown anyway, it'd be dumb if they don't release a new PvP server at least for the incoming army of new players.
Everyone's happy this way.