mapj1:

Every piece of PVC cable in use now, that is not overloaded, will still be serviceable, and the majority  will still be in service

Will PVC cables still be manufactured and sold or will they be banned and only LSF cables allowed for new installations? 

The other way to look at this is to look back - how much has changed in wiring practice since say 1980 or 1990 ? Some, but not that much, electricians probably do have a copy of the regs now, back then many would not have bothered, filament lamps give way to LED, but the the bayonet lamp holder is still going strong as the popular interface (and by 1990 we had CFL lamps already ). USB sockets may come and stay or come and go.

Not all that much has changed apart from consumer units and light bulbs since 1980. It is possible that building electrical installations could mirror office technology. Most offices of 1980 featured the same machines as found in offices of 1920 or even 1900, but in the next two decades office machinery underwent a massive transformation.

If anything as we have to use less energy, and it looks like  the next generation will rebel against consumerism generally ,  the rate of change may actually reduce.

The younger generation is more consumerist than any from the past.

mapj1:

Every piece of PVC cable in use now, that is not overloaded, will still be serviceable, and the majority  will still be in service

Will PVC cables still be manufactured and sold or will they be banned and only LSF cables allowed for new installations? 

The other way to look at this is to look back - how much has changed in wiring practice since say 1980 or 1990 ? Some, but not that much, electricians probably do have a copy of the regs now, back then many would not have bothered, filament lamps give way to LED, but the the bayonet lamp holder is still going strong as the popular interface (and by 1990 we had CFL lamps already ). USB sockets may come and stay or come and go.

Not all that much has changed apart from consumer units and light bulbs since 1980. It is possible that building electrical installations could mirror office technology. Most offices of 1980 featured the same machines as found in offices of 1920 or even 1900, but in the next two decades office machinery underwent a massive transformation.

If anything as we have to use less energy, and it looks like  the next generation will rebel against consumerism generally ,  the rate of change may actually reduce.

The younger generation is more consumerist than any from the past.