The map in Cyberpunk 2077 is going to be quite large. Probably not as big and empty as The Witcher 3 or GTA V. It's going to be incredibly dense with a lot of things to do in a big area, rather than miles and miles of empty forests and mountains.

You have the city, which is made up of six districts, and then the badlands, which encompass the area around the city.

Altogether they should be about the same size as Witcher 3's map, but maybe two or three times as dense.

Keep in mind, Cyberpunk 2077 is an RPG with driving and shooting mechanics. It is NOT a GTA Clone, or a CoD Clone.