as for the other questions.
the blade has been designed as a one for one replacement for EH101s so if the MIPT (or others) want them on other aircraft apart from the Mk3A I am sure WHL will supply.
BERP IV doesnt cover just the shape of the blade (thats actually a small part) the rest of the the work is technology applicable to any blade design, so you could put a blade with BERP IV technology on any platform (including the SK)
DM