Well the NDA has been lifted on Gridania, which is one of the locations that all takes place... Though I dunno if it means we could talk about all that too.

But anyhow, retainers as implemented so far didn't have the added functionality that's been discussed in Letters yet and I understand that they may also take a lesser role in the "AH system" than they did in the Beta.

So I think it's a wait-and-see until Beta Phase 3. Best thing to do is make sure you're signed up and go have a look yourself when it goes live!