Does killing Shanalotte aka. The Emerald Herald change the rest of the game?

When killed Shanalotte drops the Aged Feather, and you can no longer use her services (unless revived, but it's unclear whether this is even possible). Are there any non-obvious differences to the rest of the game, especially lore-related, like changed dialogue, locations or items?

1 Answer

Aside from her being dead and thus unable to appear in other locations, no. You can use her services at her grave by paying some souls.

3