Anyone with a BCPL (unrestricted) can upgrade it to a JAR CPL Restricted and assuming they have 700 hours they can unrestrict it straight away. All they need is 5 hours dual in a complex aircraft and a Prof check on that aircraft with a CPL FE. Not sure how many of these there are now, as I was more interested in the numbers holding the Restricted version.
Interestingly, if you analyse the situation the BCPL(R) holder originally held a PPL and FI rating; that's exactly what they will finish up with under EASA so nothing lost nothing gained! In fact, they are in exactly the same position as all the Helicopter FIs who continued to operate on a PPL (there was no BCPL for Helicopters) and there are more of them! Assuming they are allowed to continue to be remunerated on a PPL (grandfather rights) is there really an issue other than a loss of imaginary status? The bigger issue is the loss of the lifetime PPL and IMC.