the accident at Morcombe bay(I know the final report isn't yet published) but do you think some new type of gps guided approach with some sort of vasi or lighting system system on a rig, or anything else would have helped that night on the GA????
In a word - yes.
On an S92 you can fly the entire approach coupled, with FMS and Radar if you wish, and also a go-around if you wish. There is actually no-need for the pilot to touch the controls until he is happy to land. He can set the RADALT hold to maintain MDHor whatever height you wish to fly, fly coupled flt at 60kts, with NAV hold on the programmed cse, or HDG hold. in If not happy hit the go-around button, and let the AP fly the go around procedure, with either NAV or HDG. The AP coupled to FMS will also fly a perfect, wind corrected race track if you wish, setting you up on finals, into wind. There are many options, and I have to say I dont use that much, but on bad nights certainly it means you can be more "monitoring" than flying until the later stage.
I am starting to get the impression that your views are based on a limited number of aircraft, most likely the S76. I dont mean to sound patronizing, but I maintain my standpoint, that with more modern aircraft and systems the safety factor at night is greatly increased. Do you also want to ban flying DAY IFR ARA's? Not a huge difference from a good night as I have stated many times already, and you still have no response to that. Night flying can be done safely, and is being done safely. Sorry if that is not the case in your operation.