As pointed out: chat bubbles, ability to whisper or shout within them, as well as word commands for some of the actions in the game ("bank" opens bank, etc.). More emotes for characters, usable furniture, table games like dice, poker, and so on. Usable training stations like dummies for melee, ranges for archery, ones that actually give some skill up to a small level.
More clothes (and more party hats, plx), as well as dyes for clothing and armour. More "prop" items that characters can hold like mugs, wands, books, maps, scrolls, and even crafting tools (hammers, saws, etc.).
More wildlife into the world, hostile as well as peacefull - deers, wildcats, mooses, hell, you can even put seals on Nifleheim.
Ability to bring up a camp in the wilderness, which gives you faster regeneration, and lets you cook food on it.
Skills like forensics that can tell you who looted something, and give you his direction. Lockpicking that increases your chance to get a shiny item from chests, or lets you brake into otherwise unreachable pleaces. Burried tresures in the world, that require a map, a skill to find them, as well as a skill to dig them up.
Alchohol consumables that affect your stats when you drink them. Beds you can sleep off the effects in.
And shitloads of stuff I'm to lazy to write about.
And a fucking skill cap!