I'd be happy to see a bit more differences between normal and savage too.

For istance, normal raids could be a bit more "story focused" with it being still enjoyable in a farming mindset for each week. I think they did some great work in narrative fights with Tsukuyomi so they could rely on this system for the story immersion that is kind of lacking in Omega.

Then savage could be designed in a "training" mindset, no obnoxious trash pulls or long transition/downtown phases that bring nothing to the fight except making it longer (hello there O10S and Middy's dives).

For instance I like Halicarnassus, with the normal mode having a small mini game and the Savage having the Book phase added. I'd like to see more fights with this kind of dual representation in difficulty.