Blizzard has announced that players will be able to zoom out the camera further starting in Season 4 of Diablo 4.
Season 4 PTR Overview — Campfire Chat Summary Legendary and Unique Drops Tradeable in Season 4
A long-requested feature by the community is the ability to zoom out the camera to see more of your surroundings. With Season 4, Blizzard will implement this much-requested feature into Diablo 4!