I think it would be cool to have a few new races and that u could mix races to get different attributes and abilities, some new armor would be cool and make it to where people will think differently of u on what ur wearing and maybe have a mounting system were u can mount weapons, armor and other nick nacks like battle trophy's on the walls of your houses, make it to where u can get married and have kids and pets and that u could tame wild animals to be said pet and maybe mini games if u want to take a brake from adventuring or if you want to gamble and it would be cool to become a werewolf.
Oh dear. Not to be the "No" broker today, but....
NO: New races. Unless the game is going to take place in an environment that would allow us to utilize more exotic races, such as Sload, Tsaesci, Maormoer, and the like, stick with the base ten. Or if the game's going to take place in Elsweyr or Argonia, in which case, sub-races are acceptable. But aside from those two plausible scenarios, base ten is best for the continuity of the series After all, new races don't just spring from the ground. And not increasing the amount of races playable in the game means that more time can be spent improving the look and feel of those base races.
NO: Race hybrids. It may sound cool and all, but there are 10 stock races in the ES world, and allowing hybrids for them all provides us with the mathematical statement of [10x10] == 100 race possibilities that all need nice textures, meshes, potentially unique voice-actors (that Argonian-Orc crossbreed is certainly going to have an uncommonly grotesque voice defect somewhere down the line). All in all, allowing hybrids is essentially a resource black hole that either overwhelms the developers completely or svcks all the joy and uniqueness and distinction out of all the individual choices for the sake of propping up the slogan of "we haz choices!!!"
NO: Marriage. Remember that resource black hole as mentioned above? Well, the effort to properly introduce marriage in a believable and --->
non-gimmicky <--- light is much less a resource black hole and much more like a giant tear in the very fabric of the resources space-time continuum. Marriages in a game are only good if they are believable, and that's a bit tricky to get in this department. To lay some groundwork, it's only believable if I can
1: Marry whomever I very well please, because nothing screams artificiality than being funneled into preset relationships,
2: Have a believably long courting process (I.E. potentially 1 to 2 in-game months), because nothing screams "everyone in this effing game world is a floozy romantic bimbo" by assuming that everyone you want to court will fall in love with you within a matter of an in-game week,
3: Not experience cookie-cutter dialogue for each of my romantic exploits, because nothing screams "wow, the writing dept took a whole month off" by having every member of the courted six spout the same lines as though they are all bizarrely linked into some sci-fi one-world consciousness.
Factor in all of those necessities into a game-world that has an average of 800 to 1,000 NPCs, and cower as existence itself is negated in resource-land by massive temporal disturbances.
NO: Kids. First off, the character in these games is always, regardless of class, the archetypical adventuring hero in some way or another who goes off and does whatever they decide in the pursuit of... err... wealth, and... err... fame and er... better stabby thingies by which to repeat the process of pursuit of... I guess continually repeating the process of the pursuit. Anywho, other issues aside, let's think of the poor digital children who are going to grow up in a single-parent environment because their other parent is inevitably trapped by the basic confines of a digital medium in which new adventures are like shiny objects and the concept of staying home and parenting the kids just flies out the window.
Besides, kids in the game brings up the whole nasty issue of those kids inherently having to be immortal, which in turn damages my in-game believability by having a whole class of citizenry for whom the rawest laws of nature need not apply.
NO: Pets. See above statement concerning plausibility of immense parental neglect, resulting in terrible life conditions for the poor digital child. Then, apply said situation to the poor digital pet. Mix in warnings about non-gimmicky mechanics.
NO: Minigames. Well, OK, some qualifications for this one... No hackjob minigames whose sole purpose is to try to pretentiously con the player into thinking they are participating in the complexity of the daily life activities of the people in this world, only for the implementers of said hackjob minigames to fail to notice the irony of trying to display such things through a simple reflex medium that a chimpanzee could likely figure out given some time. Also, no minigames that attempt to give interactive life to character actions governed by skills, only for the implementers of said interactive skill minigames to fail to realize that their minigame gently takes the skill out of the equation and then proceeds to throw it off a skyscraqer. And then takes the elevator down to the sidewalk and pokes the skill's broken corpse with a stick for the pleasure of it.
Well, I certainly feel better now. Eh, that is a lot of "No's", so I suppose I should offset those...
So:
YES to having a better placement system for display items (and all items in general, really),
YES to clothing and equipped items having a more active effect on how people perceive you, and
YES to attaining some form of lycanythropy so that I can finally achieve my dream of becoming a manbearpig (and perhaps we could tack on wolfcrockshark to that).