https://www.avianews.ch/post/l-usaf-veut-un-ravitailleur-r%C3%A9volutionnaire?
In June 2022, the Air Force sent out a request for the “Advanced Aerial Refueling Family of Systems,” a dual-track program seeking a KC-46 follow-on with additional capabilities like a communications node and advanced navigation systems, while separately pursuing an advanced tanker with the survivability to operate near enemy airspace. The NGAS is now defined as that second track.