One thing I'd also like to add: A Journal worthy of being called one. Something akin to what they did on Morrowind, integrated into the story with background on quests and some written storyrelated banter.

That's a major immersion aspect for me.

Crossbows.

Bringing back hand to hand skill tree. And make epic hand to hand finishers for all enemies would make it a little more fun for me. Like dislocating a dragon's jaw before spinning and breaking it's neck would be what you class as a 'true son of skyrim'!!!

I'd like a different/advanced Destruction spell system. Five basic elements: Earth, Fire, Wind, Water and Lightning. And with those 5 elements you can dual cast separate ones to create a new element. So If I had Wind in one hand and Water in the other I could dual cast to create an Ice spell.

I also think Unarmed/Hand to Hand combat would be awesome. Especially with some really brutal finishers, from sneak attack neck snapping to breaking bones or bashing their face in or something. And Crossbows would be pretty awesome too.

I forgot about h2h sneak attacks! They're also what I wanted to add to my post.