The highest modern (since the 2005-2006 season) point total belong to Joe Thornton with 125 points. 29 goals 96 assists... !!!
On top of my head, since that time, Jagr 123, Crosby 120, Malkin 113, Ovechkin 112 Mcdavid 108 Kane 106.
150 is a stretch. unless we see about 130, I don't believe someone can get so many points ahead of everyone.
Unless it is a Lemieux/Gretzky Type. The salary cap makes it more difficult to surround star players with talent. Too many teams, talent level is diluted compared to previous eras.
As some said, depends on if the rules keep going toward more scoring.