I think the UK is reverting to what it wanted as an F-3 replacement - a long range interceptor, not a dogfighter.
The Typhoon was originally only planned to replace the Wattisham/Germany based F-4s in the dogfight role against the Mig-29 plus the Jaguar in the day fighter role. The F-3 replacement was supposed to be a two seat interceptor suitable for long range CAP to the north against Russian bombers and for oceanic fleet defence in the SACEUR role. The cut backs and demise of the F-4/Jag left a paid for airframe in search of a role.
In that respect, if you look as the progression from the F-4 to the F-3 to the XX, then yes - a 6th generation F-4 is exactly what the RAF is after.