Thanks ant1984! After spending some free time last night perusing this thread from 2011 I'm a little more confident of waiting longer for an offer, but am naturally not one to be too confident until I have an offer in writing from ASA.
When I asked the HR peeps on AC day when the next batch would be for enroute (my pref) they mentioned August this year, so fingers crossed, I'll get to butt heads then with some of you here!