Here is something to consider.
I feel that Link will lose his sheikah slate, and all those abilities.
Imagine the exact same Breath of the Wild world, no changes, except without those abilities. Replace them with things like the hookshot and others. Just that alone will make the world feel different.
Now I'm not saying that is all they will do, but removing the slate abilities would change the game drastically.
That there is my ideal situation for this game.