I am not saying it needs to be Tolkien clones. More just overall kitchen sink sword and sorcery tropes and adjacent genres would be good (for instance I would like to see samurai as a core class).
This is probably just a matter of preference, perhaps what genre material I consume, but this isn't what I am looking for in D&D. While I liked the flexibility that the broad multi classing gave us in 3E, I feel like it did lead into this very self-referential rabbit whole with concepts where a lot of the class ideas now don't resonate with me. Like an aberrant mind sorcerer or artificer battlesmith just isn't something I connect to for a core D&D concept.
on samurai I would expect the class to roughly match what you see in samurai movies. How that might be approached is going to be different depending on whether it is a class in the core book versus a dedicated supplement where you are more deeply exploring the genre. And if they wanted to do it as a subclass of fighter that might work, but I would hope they at least use the actual name samurai and keep the aesthetics of it. I was looking in the core book for something like a samurai and didn't see it but I might have missed it if one of the subclasses is meant to be that