I think it depends on what he does this winter. If he is still working on pitch design he can keep improving his pitches and create new ones. If he doesn’t go back to P3, who knows.
It depends on what you think the role of MLB should be. I think it is good for baseball as a sport to have these players using wood bats and competing against a more consistent talent base. Would be even better to see a league like this sponsored by MLB on every continent.
The Yankees also were right behind the Astros in implementing cutting edge PD techniques in the not so distant past. Coincidentally the timing coincided with the Orioles not winning any more. There is a nice section on it in the book The MVP Machine. Elias and Mejdal speak really opening about the differences in PD between the Orioles and Astros. Baumann and Means also speak to the authors.
I liked what he did in center as well, but would like a lead off hitter that gets on base batter than he has. Even his SSS splits vs. RHP from last year aren't impressive. That said when he is playing well, I really enjoy watching him.