Personally, I hope they reduce the nighttime and cave brightness to near darkness like the Depths so you are forced to use bright bloom seeds more frequently, as well as scale the enemy difficulty up faster as you play so the AI attacks with less animation delays and hit harder.
Currently, I self limit the hearts I have to only three so the stakes of combat are high for me, so there needs to me another way players are allowed to spend the Lights of Blessing you earn from shrines, such as to add a temporary increased boost to a selected weapons durability or damage.
I really hope they don’t add enemy health regen again for TotK Master Mode. It made so many fights a slog to get through rather than more difficult.
I think your idea of different ways to spend light blessings is really cool! I think I’d also like it if enemies used more weird fusion combos. Like I don’t really worry about enemy archers much in combat since I’m moving around so much, but if they were using keese eyeballs or dazzle fruit on me sometimes, I would have to worry more about positioning in combat or taking them out.
Enemies can dodge, parry and flurry rush.