Back during the first Faulklands war, there was a Vulcan bomber in the SAC museum just south of Omaha, Nebraska. The British had a bunch of their people come here and get it back in flying condition. Then they flew it away. I suspect that it was flown back to England and used for parts for other Vulcans.
I was recently at the new SAC museum and saw that they again have a Vulcan on display. However, it is NOT the same one that was there before. It is a newer version than the one that they used to have.
If they need bombers for a new war, they will probably get them like they did the last time. From museums.
.... or from civilian restoration groups...:^)