The good old days
Went on honey moon with them on the clasic 737 back in the eighties.
Problems comming back due to Spanish ATC.
Although we were on a package we were looked after.
Good luck to the rebrand but as all ways people will remember Britannia being related to rule Britannian Britannia rules the waves, or in this case should read the skies, so the identity of being British is lost to some extant.