When Death finally shows up, I imagine it's going to be a lot more like Darkness's introduction than the Gun Devil's, meaning weird paneling and random imagery over large scale destruction.
Like, the scene cuts from some looming monstrosity to the back of a woman in a movie theater, with like four other empty smaller seats, sliced bread and a bottle of wine, and the screen is the previous panel, and then she'll sigh and it'll cut back and suddenly everyone's missing their faces.
No calcable feats, no clear statements, and no explanations. Only arguments about Higher Dimensional Existence and two hour long video essays about the Jesus symbolism will be left in her wake.