First off, based on your post count, i'm not sure if you've been welcomed properly to these Forums...
http://images.akamai.steamusercontent.com/ugc/509199713966248809/0F5AF3EEE1F945B23893C1B6E78DDB45573C988D/?interpolation=lanczos-none&output-format=jpeg&output-quality=95&fit=inside%7C268:268&composite-to=*,*%7C268:268&background-color=black
They had this in Shadow of Mordor... and frankly, i didn't think it was a strong enough feature to really build the game around like they tried to... It could be interesting in the future, but managing the number of dynamic variables, particularly in a more open and varied-approach game like TES.
We had a bit of a discussion on Armour http://www.gamesas.com/topic/1587804-official-beyond-skyrim-tes-vi-71/page-6 that you may want to check out. I think we actually talk about some of the points you raise. It's worth noting that I support the idea of getting rid of the Light-Medium-Heavy dynamic entirely, which would really facilitate something like the sort of diverse crafting and customization that you (and I, for that matter) seem to want to move towards.
I've got some rather extensive thoughts about Enchanting in general that i'm saving for a later conversation, depending on the commitment to a discussion on Enchanting... Overall, I'd like to see it and Alchemy developed into more functioning Crafting system rather than the largely one dimensional things they are now, but again, discussion for another time.
This is probably the only thing I would say I actually disagree with... Like with the Akaviri Races, i think adding to the current list isn't the best idea. We're talking rather small, isolated or rare racial groups, or in the case of the Dwemer outright extinct (even if he's alive, Yagrum is has zero reproductive potential, leaving his race extinct). The Playable races, on the other hand, represent populations that can be reasonably expected to be found in every province, as well as representing major political and social forces on the face of Tamriel.
The Khajiit are something of a special case... And i would like to see some more representation, at least of their more 'generic' variants, but that does represent something of a significant effort, since many would require entirely unique animations and skeletons. It's something i'd like to see, but i think the work may be better served elsewhere.
This is mostly a scaling thing. With the worlds so heavily scaled, as they are, it's harder to populate it with a more authentic number of factions. Earlier we were talking about ways to increase the number of 'Generic' NPCs without resorting to the Cardboard-Cutout problem of The Witcher 3, so it may be possible to get back in line with Daggerfall sometime, which would definitely make these things far more viable.
Agreed. They've been improving in this regard, but there's always room for more.
In terms of highlighting family relationships, though... GTA5's character generator did this to some degree... But, i've been following Chronicles of Elyria a bit lately, and they seem to be taking it far more to heart... It may be something to keep an eye on...