Cathay has announced that all A330 aircraft in its 2 class regional fleet will shortly receiving a total tip to tail cabin refit with new seats in both Business and Economy cabins.
This will rationalise this fleet that has a present a mishmash if cabin and seating types and allow the airline to be able change aircraft as may needed.
It appears that there will be a totally new design seat coming for regional business class but no details of this were announced.

Will it or will it not be a flat bed design ?

It seems that the generally younger A330 fleet used on medium long haul ( occasionally used for flights as far as Australia) with premium economy and flats beds in business class will not be further refitted as there was a major refit on these aircraft just prior to the pandemic. The few operational older A330s over 20 yo are slowly being retired or returned as leases expire.

Cathay CEO Ronald Lam had previously mentioned that there would be “urgent” upgrades to the
regional A330 fleet but this the first time that the specifics have been announced.