Thanks for your comments !
I have reviewed FCOM 3 "NAV RA 1+2 FAULT" (and the FCTM) and whilst they detail how the flight control laws will change to "flare law", there is no reference to "direct law" or the associated direct law checklists/approach procedures.
Should I read into this that since "flare law" is subtley different from "direct law", and there is no mention of direct law, I wont have any nasty ECAM surprise and approach procedure to apply late in the approach ?