Voted for all of the options.
There should be a lot of armors in the game.
Some armors could have the same stats and be made out of the same material, but have different looks... there could be both Morrowind and Oblivion style of the same armor... and other new styles.
I would agree, I want to see variety. And it's okay if some armors aren't necessarily better or worth than others. Armor doesn't have to be a linear progression from weakest to best under a specific skill type. It's okay to have some armor's that have the same stats but look somewhat different, or even, and I know this sounds inconcievable, but armor on equivalent levels with different stats that might suit different players. Like for example, instead of just fur being the worst light armor and glass being the strongest, and everything in between following a linear progression from weakest to strongest, instead we could have armor with comparable quality but different stats. When you find a new armor, it doesn't always need to be better in every way than what you have now to be worth using, sometimes, it could have both advantages and disadvantages compared to what you're already wearing. Maybe it offers more defense, but weighs more, or maybe it has less enchantment cost, or something like that. The point is that different armor types should have their own merits, glass might be the best light armor has to offer if you want defense (At least, not counting unique items.) but I can't imagine covering yourself in shiny bright green glass plates is good for sneaking, I just hope to see this reflected in game. This is not to say that no armor should be better than another, just that, in the same "tier", so to speak, there should be more than one type of armor that is good for different purposes, in short, the choice of which armor to make should be more than just going for whichever has the highest defense. This should make the choice of armor have more weight, and make it so that you won't necessarily want to switch out your armor as soon as you find something better, if done well, I think this would make characters more varied in the end as players would choose whatever armor is most appropriate for how they play their characters, not whatever armor has the best stats.
As for what armor should be included, the basics like steel, glass, ebony and Daedric should be covered, of course, I'd also like to see more native styles appropriate for the location where the game takes place, I like that Morrowind had many native Dunmer armor stypes, they really helped to show the native culture. Obviously, native armors should fit the province the game takes place in, they should look like something you could imagine the native race there using and that could be made with the materials available to them. In Morrowind, things like chitin and netch leather seemed appropriate, their designs fit Morrowind, and they were made using materials available there (Since Morrowind has a fair amount of creatures with chitinous exoskeletons, chitin is likely not hard to get. And netch leather should be pretty obvious, seeing as netch are native to Morrowind.) but if the game too place in Skyrim, we'd see very different sorts of armors.
As far as the style of existing armor types, they don't necessarily have to look the same as in Morrowind or Oblivion, Bethesda could change the designs again too, like they did when they went from Morrowind to Oblivion. That's really not that unrealistic when you think about it, because just because two armors are made of the same material doesn't mean they must look the same, but obviously, the game's can't have infinite variety in armor, the game can't include a fully realistic level of variety in armor, but this does mean that the designs for armor of the same material changing between games is not unreasonable.
Although in terms of my preferences, I definately liked Morrowind's glass armor better than Oblivion's, while Oblivion's may have benefited from better graphics technology, in terms of design, Morrowind's was much more appealing. As for Daedric and ebony, I liked the designs in both games, honestly, although I wasn't that big a fan of the Oblivion version of the ebony helmet, everything below that looked pretty good to me, though.
Then why name it after a real world material? They could have named it baseballs instead, and you'd be saying "Baseballs in TES are not the same as baseballs in our world.".
They could do so, yes, but I sort of agree that it doesn't make much sense to name a certain material after a real world material when in reality it's sort of different. But in the case of glass, at least, there is some justification, the glass used in armor does seem to bear some resemblance to real life glass, it's just that unlike real world glass, it's practical to wear a suit of armor made with it, and I'd also say that the glass you see used in windows probably is different from what's used in armor. But really, all this is not relevant because glass armor and weapons is already part of the Elder Scrolls world, saying that they shouldn't call it glass if it's not the same as real world glass is like saying that dwarves should not be called dwarves if they're not the same as D&D or Tolkien dwarves (admitably, dwarves isn't their "proper" name in the lore anymore, but so? The name "dwarves" still shows up when talking about them, and we still see dwarven armor and weapons, if Bethesda was trying to deny that they were supposed to be dwarves, that name would never be used at all.)
I think it means that it has ebony supporting struts, but it still makes little sense
We know what ebony is in the Elder Scrolls, it's a form of volcanic glass that is said to be crystalized god's blood, and it's named for its dark, shiny appearance. There is no wood involved in it at all.
Get rid of the material progress system. It's ridiculous and unnecessary. How on earth is steel plate armour with elven craftings better than a regular steel plate armour?
And how do you know elven armor is steel plate except with elven craftings? I'd assume that's what you mean, at least, because I can't think of any other armor that could possibly fit your description. The fact that it's light armor while steel is heavy and yet it looks like it's also made out of metal plates would seem to suggest it's not. And the name "elven" reallt doesn't tell us what it's made out of, it just means it's an elven design. And even if it is steel, it's possible that it's made using higher quality steel than normal steel armor, or that the design itself is better.
Whatever the case, I'd say it's very necessary that different types of armor be able to provide different levels of defense, it just doesn't necessarily need to be a linear progression.
Would also be great if armor was consisting out of more parts again like in morrowind, with the option of wearing clothing under it. That greatly expands the appearance options.
I'd agree about more armor slots, but I'd say that removing clothing worn under armor was a good idea for balance reasons. Because in Morrowind, unarmored players were severely penalized due to getting less enchantment slots than armored players. They missed out on the various armor slots, and the only slots in which clothing could not be worn with armor were the ones where armor already had items that took up those positions, namely the hands and feet. Of course, in Oblivion, unarmored players were still penalized due to the lack of unarmored gloves and the removal of the unarmored skill, but those issues can be fixed in future games. Now, I wouldn't object to being able to wear a robe over armor, if it could also be worn over shirts and pants, but letting one wear skirts and pants with armor again would be ounterproductive to ensuring that playing unarmored characters is viable.