I see that the CAA has just issued an Official Record Series 4 exemption to permit momentary flight within within the H-V avoid curve for operations with exposure. It also states in the preamble to the exemption that this will be mirrored by other States in Europe.
ORS4 No.1042: Helicopter Height Velocity Envelope - Requirement under Regulation (EC) No. 216/2008 that an Aircraft Must be Operated in Accordance with its Airworthiness Documentation | Publications | About the CAA
Jim