'While we are there - what does the ATC bible say about "Loc established" with the new clearance "when established localiser, descend on ILS" - is it still a required call?'
In the UK the new ILS procedure makes no requirement for a localiser established report. ATC should give a closing heading followed by '"when established localiser, descend on ILS". Period.
Some UK ATCOs have embraced the new procedure superbly, others haven't (or won't) and some still mix and match. Sounds like a job for the standardisation teams!