While I'm not a fan of the Airbus (it is still having problems) and the fee-for-service mentioned in your previous post (ask the RAF about this) one thing is certain. The KC-46 will never replace either the KC-135 or the KC-10 in capability and in the numbers we have now. There are a few USAF reports floating around that discuss SLEPing KC-135s, retiring the KC-10 and replacing all KC-10s and some 135s with the KC-46. But like anything AF, it'll take a 69 different committees, tiger teams, SSS and TMTs to even start down the road of developing and executing a plan.
The KC-46 is not a good replacement for either jet. And, IMHO, the AF is making a bad decision if they don't replace the KC-10 with a KC-10 like aircraft, especially when talking CORONETS or conventional long range support. But something has to be done, and I agree with you that we have got to find a good replacement for the KC-10. Maybe a little bit of competition will finally get Boeing motivated to unfvck the KC-46 and force them to look seriously at big wing military jets in the future.