I see that Eaton have or are developing a 3 module device, that incorporates MCB, RCCB & AFDD.
Their speal says;
'The AFDD+ provides a full protection solution against electrical ignited fires
The AFDD+ provides a full protection solution in one device that enhances consumers’ peace of mind against fires ignited by electrical installations, while adding additional comfort. This all-in-one device gives the consumer full protection in his home and enables the installer to offer and install products that comply with new codes and standards'.
'Mostly these devices are intended for residential applications (bedrooms, nurseries), hospitals, assisted living, nursery schools, where the residents might have difficulties to evacuate, because they are immobile, sleeping or unaware of a the threat. As well Shopping centres, airports, train stations such applications, where large groups of people have to be evacuated in case of fire. It is recommended to use an AFDD as well in buildings where valuable assents need to be protected, like a museum or a library'.
Seems they are hedging their bets, as to where the IET will be 'recommending' the use of AFDD's.
Still only a few weeks to go, before all is revealed, or not in the IET's history of these reg changes.