I think he'll end up retiring after Avatar 5, but I agree. Having binged most of his filmography lately, I would love to see him do one last R-rated movie, but I do think TWOW has a lot of the emotional maturity in it's themes and story that T2 and The Abyss have.I liked THE WAY OF WATER quite a bit, and am looking forward to seeing 3... but I really wish we'd get to see Cameron direct something non-AVATAR again before his career is over.