Today Activision and Treyarch revealed Call of Duty: Black Ops 4 to the world and just like the leaks and rumors said it will indeed not feature a campaign. As we all now with every COD title we will get a zombies mode and regular multiplayer.
Since Treyarch are not putting in a campaign for Black Ops 4 they will be adding in a Battle Royale mode better known as “Blackout”.
Includes:

• 1,500 times bigger than Nuketown
• 10 Years of Black Ops features, favorite weapons, characters, maps, all in one place… WITH VEHICLES
• Zombies cast, weapons and gear

Here is the official trailer for it: