I'd love to have a transmogrification secondary enchantment to make the armor, equipment, and weapons you have equipped look like different ones you want to look at. That way you can retain the better stats of the, possibly ugly, high level gear (looking at you dragonbone gimp mask). WoW has this feature and it's the best part of that game.
To organize and summarize some of my favorite points in this thread:
-Positional Damage
-Rooftop thieving in cities with an assassin's creed-style climbing skill.
-Diversity of dungeon and quest quality & length (ie: hiding an entire guild inside a random cave for the sake of discovery)
-Different types of attacks that can be used with each weapon, especially those using movement (My dream; Bethesda contracts the combat out to Platinum Studios who create an entire set of attacks for each weapon / spell school.)
-The option of more hotkeys (or hotbuttons on console) instead of the favorites menu
-Generally 'better' everything
The return of spell making and a ravamped perk system that adds perks which require certain levels of two or more skills to obtain yet effects all skills needed in some way. Also more variation in voice acting I cannot even stress how immersion breaking it is to here two guards that sound a like or two characters from two different guilds being voiced by the same actor. I know that was more than one but there is just so much to want and wish for that to only choose one seems ridiculously impossible.
One extra little addition the ability to actually see all your gear equipped e.g a sword, bow, arrows, and a dagger all show in third person. I know pc has a mod for this but as a console player I can only want and wish. Oh and please for the love of the 9 let me wear clothes under armor and add a hardcore survival checkbox like how fallout new Vegas had.
A fear system. I want to be able to walk into a shop wearing full Daedric Armor and say, "Give me that potion of cure disease or I'll mutilate you," and get the potion for free. It's kinda weird when instead I walk into a shop wearing full Daedric Armor and say, "Here you go, 223 gold, thanks very much."
An immersive carrying system. I want more than just an inventory. You should have a very low base carry weight of like 10, but this will not include equipped items. items that are not equipped or in your pockets will go into whatever carrying pack you have on, and higher stamina will allow you to carry bigger packs. even the packs though should only have about 100 average. In order to get more you should have to buy a horse and saddlebags, and then you could put your carrying pack onto your horse and take it off at will. Your horse should have no base carry weight, but should be able to carry much larger bags than you. This would allow you to reach about the same capacity you could in skyrim. It would also be great if your character's weight was calculated by their height, weight, (as in the kind you select in the race menu) and the weight of their equipped items so that getting onto the horse would add that much to its weight, and there would be situations where you would have to either walk alongside your horse or drop some things from its saddlebags. I would love that
It'd be fun to see them do a bit more some of the "investment" concepts they tried in Skyrim, assuming the economy is similar. I'd like to be able to make a beggar rich, and see if he turns his life around and maybe even offers some kind of reward for it. Or maybe he destroys himself and his family comes after me. Helping contractors finish their work with investments is kind of fun, and provides a use for the piles of gold you end up with later in the game.
I think it would be nice if the animations for weapons and moving in armor changed as you increased in skill level with them, for example you as a novice you start out swinging your sword wildly but as you progress to apprentice to master you start making better strikes, less wild swings that end with the weapon way off to the side. Or with heavy armor the character starts off with a walking and running animation that expresses just how heavy it is and how hard it would be to move in it, and then as you increase your skill in it you start moving more fluidly showing that you've learned how to move in it allowing it to be more effective.
1) Survivor mode. Your character must eat, sleep and drink everyday or else your skills will decrease or even die.
2) The environment affects the skills of the player. For example diving in cold water would reduce your health if you don't get out. Being wet will decrease your fighting skills, etc.
3) Unarmed skill tree for those who love it.
3) Thalmor as the main antagonist because they had little involvement during the Dragonborn's journey.
4) Complementing about the Thalmor as antagonists, Elsweyr would be a cool place for TES VI. The player would be the Mane and he would lead his people against the Thalmor when they learn that the elves lied to the Khajiits about using "dawn magic" to bring the moons back.
5) The end of fast travels. Buy a horse or hire a carriage.