There remains an aspiration to provide helicopter SAR throughout the UK Search and Rescue Region (UKSRR). This extends to 30 West. I'm not entirely sure if a Chinook with a full set of internal tanks can do that. I'm fairly sure that nothing else can without AAR. I do know that the last time a helo SAROp was done from England at anything like the edge of the UKSRR, our ex-colonial cousins kindly provided the capability including both tanker and receiver.
So, when a politician needs a gesture to the world of international aviation or maritime agreements, expect a flurry of activity!
yours cynically
Sven