Whether or not the USAF is able to keep its elderly fleet of KC-135R and KC-10A serviceable until 2025, when things such as this:
might possibly come into service is a risk which only the US might be able to answer....
Until then, the KC-X is probably the best solution. The mind-blowing incompetence of supplying each others' confidential IFARA information to rival bidders is simply incredible....
