There aren't many filmmakers who make groundbreaking films in the first place, let alone someone who's in their 70s and is already one of the most transformative figures in the history of the industry. It's not so much a question of whether he can, it's a question of whether it's reasonable to expect him to do it again. It's probably asking too much.

That being said, though, I do think West Side Story and The Fabelmans are groundbreaking in the context of his own career. He had never made a musical before WSS and remaking an American classic is a tall order for anyone, and not only had he had never done a domestic drama as intimate as The Fabelmans but he had never made anything so nakedly personal.

So even if he isn't changing the industry he's finding new ways to make more personal films and that's exciting enough for me! And the fact that he's still making movies as good as WSS or Fabelmans is a blessing in and of itself.