Character Swapping
God of War sort of allows you to take control of Atreus. Granted, you can only really tell him when and how to shoot at enemies or objects. If he’s feeling salty, though, then he may just ignore you.
Regardless, it would be amazing to have the ability to actively switch between Atreus and Kratos. They have varying fighting styles and it would inject some needed diversity in the gameplay.
We currently don’t know much about the new God of War sequel so Atreus may be a grown adult by the time of Ragnarok. Either way, being able to take control of him, younger or older, would be a interesting addition.
It doesn’t even need to be an active switch either. Having moments in the story where you end up following Atreus’ perspective would add a new dimension to a narrative that’s heavily defined by his relationship to Kratos and his personal growth.