ill have to dig up the link but there was a leaked memo from todd howard talking about the direction he wanted TESV to go. thankfully its not an MMO, however it is four player coop where you pick one of 4 characters, each representing a different class such as warrior, mage, rogue and priest (healer).
there will be a third person cover system, along with health system akin to call of duty world at war. basically if you get injured just hide behind a wall for a few seconds and you will be back to normal.
enemies will be scripted to attack you in ever increasing waves of difficulty.
magic in morrowind was far to difficult for even the most intelligent people to comprehend.........i mean seriously who can possibly switch from weapons animation to casting animation, thats just way to hard. oblivon partially addressed this by letting you cast any spell wearing full armor and carrying a shield and a weapon and chewing bubble gum at the same time.....however apparently that is not easy enough. now you can even cast while drawing a bow or the same time your swinging a sword and the best part if you are knocked down you can still cast then as well.
another addition to magic, lockpicks and healing potions and cure disease potions were made obselete by magic (seriously is anyone who plays specialized characters gonna pick lockpicking over alteration which also includes lockpicking) and why bother carrying those silly potions when you can just wave your hands and expend a tiny portion of your magicka. the game is made even more accessible to the masses by having magic repair your armor.....thats right no more need for that silly armorer skill and no more lugging around repair hammers.
armor is now all one piece sets. shortswords have been removed and the game now uses just swords, axes, hammers and bows. they all use the same skill now called weapons skill.
archery and casting spells now have aim assist.
there will only be a third person view, since its FAR to difficult to include an option for first person as well, and did i mention the cool new cover system.
lots of "cheevements" like i started the game up, i made a character, i killed my first bad guy, i killed some wildlife, i sat through the intro video, i healed myself, i hurt myself, i healed someone else, i hurt someone else, i didnt to anything except stand in one spot after the training quest for 2 or more minutes, i turned off the game, the game crashed (im betting on getting this one right away), i joined a coop game, i quit a coop game in the middle of a hard fight screwing everyone else over and lots more of those ever so important achievements.
im SO looking forward to this game now.