Hades 2 is putting players in the magical boots of new protagonist Melinoe, but that doesn't mean Zagreus won't play a role in the game's story.

Source: https://gamerant.com/hades-2-zagreus-story-role-underworld-leader/

Promoting Zagreus from slayer to boon-giver would be a clever nod to his ascension at the close of the first game, while tying him to a core mechanic of the games.

Source: https://gamerant.com/hades-2-zagreus-growth-give-boons-melinoe/

Set in the underworld of ancient Greece, you play as Zagreus, the obstinate son of Hades.

Source: https://kotaku.com/the-21-best-games-for-the-nintendo-switch-1794881447

There is one weapon that could easily make a return from Zagreus' arsenal in the first game and help expand on its weapon builds, and that is the bow.

Source: https://gamerant.com/hades-2-mythology-melinoe-legendary-weapons-of-night-scythe-labrys/

To facilitate the reunion between Achilles and Patroclus, players have to unlock the Administrative Chamber which Zagreus was barred from for being a terrible employee.

Source: https://www.cbr.com/hades-reunite-achilles-patroclus/

Zagreus becoming a boon-giver in would tie him to a core mechanic of the game and offer a fresh dynamic for players.

Source: https://gamerant.com/hades-2-zagreus-growth-give-boons-melinoe/