Among the notable new changes, the director stressed that Infinite Warfare would feature the best performance capture in a CoD game seen to date:
We’re also using physically-based rendering, which means more detailed lighting and improved shading across the board. Surfaces in our game, from the hallway of a warship to the wrinkles on a character’s forehead will be seen more realistically and naturally than ever before. We’ve built a new performance capture stage too. Our tech really lets us bring the actors’ performances to life in a really cool way. We can’t wait for fans to play the game for themselves.

Although, it looks like the team is working hard for making improvements to what is, by now, a dated engine, it still doesn’t make sense as to why they can’t create an entirely new one. This just shows that releasing new CoD games quickly takes priority over anything else, upgraded visuals included.
Fans won’t be too pleased as the game has already managed to tick a lot of wrong boxes and this might just prove to be another news that doesn’t really build up any more anticipation for playing the game than before.