If I was Activision Mircosoft whoever owns cod now, Here's what I would do. So as we all know Black ops 1&2 ports are selling through the roof on PS5 alone. Obviously a lot of new players are probably also getting onto these ports for the first time. With the overwhelming success, it's obvious this is what Players want. So what should they do?
If I was them I'd take a few years off, keeping the ports running smoothly. And I ask the player base what do you Like, what do you not like from these older games? Leave the Polls open for awhile take the most popular choices, or the most common comments. Then take 2-3 years and make one new Cod game based off fan feedback from these ports.