I hope they go away from the whole skill system from Oblivion and Skyrim. If you can sneak great - it should not be 5 different levels of sneak/stealth. I think the whole character skill/power progression is a huge miss compare to older D&D systems RPG or even ESO online. It is tedious and repeatable and do not create that much excitement as the original character progression thoughts back in old Daggerfall. Todd Howard need really consider a different approach to character progression and class powers in my humble opinion which is not repeatable none sense to improve in sneak for instant in Oblivion TES 4.
I still enjoy Oblivion much more than Skyrim even with a tedious skill progression system, because the story is better and the lore books is well written. At the time Oblivion was graphical amazing in 2004, and caves improved with difficulty when the character advancement hit level 10 for instant so it keep you on your toes, a challenge.
I do not like the Skyrim approach to world exploration and danger. A dragon or a giant in a certain location of the map is just silly, because it really limit the whole exploration experience, and you dont feel that the world is alive and breathing. My point is a dragon or a giant should not appear randomly in the beginning of the game when you just starting out in TES VI. A dangerous foe/creature should be implemented based on the character progression somewhat similar to Oblivion TES IV so it feels like a challenge.