there is just as much concern among BCPLs (who also stand to lose their livings if their licences are not recognised.)
Not at all. A BCPL(R) was issued on the basis of a UK PPL. It currently translates to a JAA/EASA PPL and under EASA rules, a PPL holder will be able to give instruction and conduct tests and be remunerated, so nothing lost or gained apart from the Blue licence cover. Such people are in exactly the same position as Helicopter instructors operating on a PPL.
For those few people who still have a BCPL without restriction, they have had 10 years plus to upgrade it to a JAA CPL. There is still a JAA CPL Restricted
(LASORS D2) which requires 700 hours to remove the restriuction. Anyone holding a BCPL should have acquired sufficient experience by now to apply for this licence and have the restriction removed straight away. Failing that, they can also revert back to a PPL and still conduct remunerated instruction.