the appearance of armor in pics has nothing to do with whether something is considered a separate armor slot or not in your inventory.
The screens show little pouches, leather straps and many various components that make up each armor mesh, but that doesn't mean every single element will be a separate slot in your inventory.
I mean there were pictures where the pauldrons didn't match the chestplate (I forgot the proper name). In the instance I saw Dovakhiin was wearing leather armour with what appeared to be Iron Pauldrons. It seems unlikely that they would produce this picture if you couldn't even wear pauldrons. Almost as unlikely as oh I don't know an assassins creed trailer showing a crossbow in game when such an item doesn't exist.
Well since vsions is one of the game developers, specifically a character artist, I would take that pretty seriously. Mods have no say in what happens in the game, since they don't work at BGS, as where devs like vsions actually MAKE the characters in the game. If anyone could be an authority on what armor the characters can wear, I'd say it's him.
Point: Armor will be fine, and will in fact be better than ever. Think about the possibilities, be happy, and you'll be coming back to the forum when the game comes out to tell me how awesome the armor system is.
The mods I meant were game developers but that doesn't matter. I'm not being overly negative about it because it's not that big a deal for me it's just a little disappointing. The only main issue I have is with the number of guilds and I WILL NOT BE HAPPY. The happier I am about this game means the longer the wait is going to be. I'm trying to find all the flaws I can so I don't purposefully put myself in a coma to make 11.11.11 come faster.