I attended the HCGB meeting where this was discussed and, if I'm correct, it's part of a proposed standardisation of European flight rules.
It did highlight the value of HCGB in identifying and representing our interests in such matters. Apparently there are c.500 UK members of HCGB - more than all the other European clubs put together - so, presumably, they can't have much clout when it comes to defending their interests.