P/C will always have their own style of skating. They'll always have this fluidity and easyness when they skate and this expression through their whole body. They discovered it on Mozart I think, and then chose Build a Home because the difference in the music (from classical to modern pop) was obvious, the challenge was obvious. Then they went to Odduada to explore chaos (even if Stillness was added to make the program more bearable - how I wish they didn't add it !).
I don't think we can say Moonlight was a bold choice. It was the Olympic, they wanted to win so they chose classical. It's only logical, and they still managed to work on the music to highlight it by their movement imo, but there was no exploration of their style in it, even if it was the best skate of their life.
It was, in my opinion, a synthesis of Mozart' innovation, Build a Home's emotion and the choreographic challenge of Odduada. It was P/C's style, a recap of their Olympic season, on a classical music.
If we want to look at the emotion they have pictured until now, it went from the "basic" love story
(chasing, falling for each other, breaking up => Mozart) to their story as friends
(traveling, failing, joy because they are two on ice => Build a home), and then it was more philosophical
(Chaos of life, finding peace in a partnership => Odduada/Stillness).
The stillness theme was somewhat redundant with their previous work. If we want to analyse Moonlight, I'd say it's about sadness, shock, despair and acceptance, but it's open to interpretation, even more than their previous work.
So far they expressed love, joy, sadness, a little bit of despair, struggle, acceptance.. It's mostly.. interior emotion ? Do you see what I mean ? I think they can go to more violent emotion now.
I'm not asking them to have the kind of presence Capellini/Lanotte had, they should stay them, but I'm curious to see what they'll do with deception, anger, fear, passion for example. Death maybe ? I think it could be glorious.
I've been looking through Yamagata's music, and now I wonder if they are not using acoustic version of her music. We'll see. But when I'm listenning to her, I'm not that optimistic about a change for an "exterior" emotion. They are not entitled to do what I want them to do of course, but it's a little disappointing

. Aaah, NHK is so far !
PS : sorry for the looong post, I had to make a retrospective to make my thoughts more understandable. Thank you if you read all of it !