I have been in touch with the RAF Museum on this and they replied that:
The press release ... was an unauthorised and therefore inaccurate release.
At the moment, I can confirm that both British Airways and the Royal Air Force Museum Board of Trustees are together, currently reviewing the future status of the aircraft in the British Airways Collection at the Museum's site in Cosford. Discussions have barely started and the review is ongoing.
While this doesn't tell us much that is new, I find it surprising that a press release, however inaccurate it seems to be, did find its way out. The basic message also seems to be the same: 'we are reviewing the future prospects'. I guess it still makes sense to keep an eye on the developments, and perhaps to let the RAFM and BA know that we are concerned for the future well-being of the airframes.