Foreword;
This may be a bit of a long one.
I have played many an MMO over the past few years, there have been some excellent innovations, many of which I am pleased to see in ESO. The one thing I feel that is lacking from most mainstream MMOs nowadays, that would in my opinion fit perfectly into the ESO landscape (and has been present in previous Elder Scrolls games) is the ability to make your character less combat focused in favour of taking up any other professions.
Firstly, to clarify one thing - every characters needs to be viable in combat to an extent. You need to be able to quest and take part in some group activities. However whilst all characters are born equal, who is to say you shouldnt be able to specialise a bit? It is already commonplace and acceptable to have different skill trees/talents/whatever you want to call them depending on your game for PvP, PvE, Solo Content, Raids etc. I am pleased to see that ESO has gone a step further by introducing crafting skill trees, why not take things a bit further?
So What am I Suggesting?
Imagine this - my hardy Orc has a decent Battleaxe and some Heavy Armour. He knows how to cut down a few Mudcrabs etc, but thats not where his real passion lies (if you will excuse the RP-talk). No, what my Orc lacks in combat prowess, he makes up for in his supreme smithing. Folk come from all over the server to buy his wares. He can repair, improve, modify and create the sort of armour which your top end raiders want to be wearing (although naturally he reserves the best for himself).
In an MMO environment, this means I spend a fair old bit of time gathering materials and buying extra-specialist resources from NPCs to make my gear (this can then balance the profitability of the spec). As a master Blacksmith he still does get a few combat related perks such as improved armour rating when wearing his own gear, lower durability damage etc - in a group he can passively boost these stats for teammates as well, or repair other paty members armour on the fly. Like I said, he has to be viable in combat, at least to a level where he can quest acceptably and help in groups and provide value.
Why stop at the crafting skills? Exploration, Fishing, Trading/Bartering....there are so many avenues that can be explored for the non-combat professions, to varying degrees. I dont think all of these would be suitable to take as a characters primary spec, but they still add a lot of flavour and choice, which is something I am really big on.
Like I said, ESO is already halfway there by implemented the crafting skill trees, which is one of my favourite features of the game. In the previous Elder Scrolls games I loved that you could make an Imperial character and be a silver tongued mercantile genius. Talking your way out of potential fights, getting better prices from merchants etc rather than just battering through the game with a hammer. I would love to see an MMO attempt something like this. Some "MMO" style games have done it historically - games going as far back as Runescape gave you extensive facilities for levelling professions. What I am now proposing is the ability to make that the primary focus of your character right from the get-go.
How Would it Work?
I dont really know. It could be an active choice/specialisation you make from character creation along with Race and Class (hell even make the Crafting professions classes in themselves, supplemented by some combat abilites...).
The key things are being able to earn experience outside of combat from your desired path to glory, being able to quest/group to a competent level (doesnt have to be up to the 100% efficiency of a pure combat built character, as long as you are competent), and having tangible rewards for this tradeoff in the form of superior crafting products, special rewards/items/skills/crafting or exploration quests...I dont know, use your imagination. I just think that ESO has so much of the framework in place to already achieve this, that it would be the perfect game for such a concept to take root.
This is very much just a raw concept which I would like to throw out to the wolves and get opinions on. I realise that the game is too close to launch for radical changes but this is just a bit of a passion of mine and wanted to get other peoples thoughts and suggestions. I realise that from a balancing perspective it would require some work to prevent non combat classes from being under or overpowered, but as a concept I think this would be fantastic for an MMO like ESO.