My money is still on EFVS being more the norm in the future.
NVG's work up to a point - but don't actually work without some light.
EFVS can be certified and it would be a better idea to mount the multi-spectral sensors on the aircraft for lots of reasons.
EFVS is common on a lot of private jets where "money no object" prevails.
Have a look at your local jet ramp someday.
ELBIT seem to have made some significant progress with EFVS and the Wearable HUD.
Skylens and LPV anyone ?
Newer generation AH aircraft are already using ELBIT having dumped Thales.
I would bet that this is an available option on the new H160 and could easily integrate on the current H145.
NVG's actually go back to WW II.