I randomly came across this 5 minute video on the 2022 Everest season so far ("EVEREST SEASON 2022 BEGINS, WITH SEVERAL PROBLEMS."). Right at the end, they seem to be proposing a new route, avoiding the Icefall - including maybe iron rungs on the cliffs ! Take a look. I'd have thought going up a Nuptse spur would lead to plenty of difficulties in itself anyway ......