I know I am making one of the most annoying kind of posts to the developers, I need to strees that I am sure most of what I write is probably already in their minds, but there are some recurring features in all elder scrolls games that I feel are a relic and hinder the feel of the game.
I am talking about keybindings and spell activation.
Simply put, I believe that every single keybind should be able to be remapped by the player and nothing (especially the "quick slots") should be set in stone. Everyone has a comfort zone and there are a ton of people out there that find the numerals quite obstrusive to use while also moving the character.
Which brings me to my other suggestion. No more "cast" button please, when someone pushes the button for a particular spell/ability, the corresponding spell/ability should be cast, not just selected and then require another keybind to actually cast. As I am sure everyone is well aware, the response of your controls is a deciding factor on the feel of a game, and adding more steps between the player and his character can not only dispell the illusion of immersion, but also make a game feel sluggish.
To give an example for what I am trying to say, Suppose I play a mage and someone is chasing me around a dungeon. I would like to press (an example) the button Q and my first spell fires, as I turn a corner I see some kind of opportunity that I can exploit with another spell of mine (which is bound on button 'T') so I press T for it, some seconds later I get hit so I push Shift-Z to quaff a potion, and the chase continues.
Also, more quick slots please.
Next, I would like to comment a bit on spellcasting. First of all, the vanilla projectile speed in Oblivion is about 5 times slower than it should be, which, apart from easily dodgeable arrows, resulted in very slow spells hurtling through the air making it frustrating to hit a moving target, now couple this with the fact that the spells would usually fire after a short casting sequence and what you get is an awkward magic flinging experience.
My suggestions here are to greatly increase the projectile speed (perhaps even making some types of spells "hitscan"), and either greatly increase the casting speed and add some kind of delay before you can cast a spell again, or (my personal favorite) enable the "holding" of spells, i.e. if I continue to push the corresponding button, the spell will not fire after being cast, instead my character will "hold" the spell until I release the button, at which time he in turn instantly releases the spell.
Well, that's it, I hope I made the post as contructive as possible, would love to hear some thoughts.