My suggestions are the followings :
1. Like in Morrowind, it would be great to have a wide variety of light source (light (the magic thing...it was present in Oblivion), torches (also present in Oblivion), candles, lanterns, bug lamps, and all kinds of candles and lanterns).
2. Like in Morrowind, we could use A LOT of weapons like (type of weapons that are not in Oblivion) : crossbows, darts/ throwing knives/ ninja stars, spears. ... Just use all of the weapons from The Elder Scrolls serie, including the GOTY editions.
3. In Morrowind, the Levitate spell was fun, but if it not in TES V it's not a problem.
4. As you did with the PS3 version of TES IV (making better graphics/skins), you could do the same with the next game and in addition to it take the time to program it for the PS3 (ok, I know it takes more time then with the Xbox360, but if you don't, the PS3 version will have more alias than the 360 version....like with all the multiconsole games). And we can't denie the fact that the PS3 has supperior graphic capability, compare to the Xbox 360 (thanks to BluRay). (It would be sad if it was just a port, like much other games...)="http://www.youtube.com/watch?v=dEXro9yZpZs&feature=channel"http://www.youtube.com/watch?v=dEXro9yZpZs&feature=channelThis the best "console war" serie. It is nutral, and it isn't crap.... just watch them all.
5. In Morrowind, the Nord had an immunity to frost (well resist 100%... that's immune), and in Oblivion he had good resistance to it, but not immunity. So for TES V, because it will be in Skyrim, could you bring it back to immune.
6. Like me, everyone alse are dreaming to just have a command box on the console versions. The console could in the menu / options, as the cheat option. The interface could be as so : (when selecting the cheat option, it would quit quit the menu screen) There would be cursor directed by left directional pad and a keyboard directed by the right one. The cursor would be used to type the letters and click on items and characters, in the player's view. The keypad would be a normal one, but one exeption... it would have an up / down button, to select previously typed codes. And the entered codes and effects would be diplayed the same way it is in Oblivion.
7. And PLEASE, if the game ISN'T READY, DO NOT release the game.