@fsonicsmith by what I hear at audio shows, "the new hi-fi sound" is sterile, precise, cold, stainless-steel metallic, operating room bright.
Not all, but what predominates
In 2019 I attended a show and one room had a world renowned amplifier manufacturer paired with a recently popular speaker coming up through the ranks.
It was 1 of 87 rooms. If it was not last place, was close to it in my mind. Simply sounded horrible. Felt bad for both manufacturers knowing their gear sounds good when paired with other partners. Just not this pairing.
Wondered if people coming in to the room would think of it as a new take on sound.
Old or New theme, good pairing and setup can make a big difference.