Winning the last war is typical military thinking. The UAVs are successful right now, and I haven't heard of them needing aerial refueling. Where's the present and future need for aerial refueling?
Funds to Boeing, NGC to Advance UAV Aerial Refueling
USAF says the KC-10A is too large. If true, then so is the A330.
Air Force Times:
The tanker debate: Why bigger is better