KC-30's are planned to refuel the C-17 [US practice if needed] as well as the Wedgetail and other KC-30's. This is in addition to fighters and coalition aircraft. The secondary uplift of troops and freight boosts our resources.
No argument about a KC/MC-130 configuration either. We have "sneaky pete" C-130/P-3 assets as well, just not advertised.
About the AofO, we can't predict our next role or area given the global nature of fast changing events.