We found that we wanted to replay Wolfenstein: The New Order a second time, immediately after beating it the first time to see what the other timeline was like. We would recommend you do the same as some of the dialogue is worth it, and it is required in order to get all of the collectibles and upgrades. Other than that, unless you want or need a certain achievement, there really isn’t any point in replaying the game after that. Sure it is fun to fight Nazis with different assortment of weapons, but the environments tend to feel the same in a lot of situations, and well you can only kill so many Nazis by yourself on a mostly linear track before it gets boring.
We’re not sure why there wasn’t any multiplayer modes added to it, even if it was something as cliché as Nazis Zombies survival mode as there isn’t any other reason for you to pick this game up in 3 or 6 months after beating it. The only thing they added was ONE level from one of the 90s Wolfenstein games, but sadly it is quite short.