I suppose it depends on how many games you think the Blazers will win and how rapidly you think LAL's young players will develop and learn to play with LeBron, but...
LeBron played in all 82 regular season games, plus 22 playoff games. He led the league in games played, minutes played, playoff games played and playoff minutes played. All that and CLE won 50 games in the East. This isn't the East and he doesn't have the same supporting cast in LA he had in CLE.
Do you really think that LeBron, at 34, is going to want to log that many minutes for the second year in a row? Because this Laker roster will need him to carry an even bigger load than CLE required last year.
Also, keep in mind that when LeBron first went to MIA and when he returned to CLE, there were growing pains as his new teammates learned their new roles and adjusted to playing with LeBron. Both of those teams, with far superior talent to anything he has in LA, started slow. They eventually figured it out, but this year there will be less margin for error and he will be surrounded by less talent.
No doubt LeBron is still the greatest player on the planet, but basketball is still a team sport. LeBron will need his teammates to really step up. Not because he will be any less great this year that he's been in the past, but for the first time in his career, LeBron does not have the luxury of playing in the Eastern Conference. He will face the toughest regular season competition of his entire career.
BNM