So what's the one thing, you think, the game lacks and you want to see it implemented or improved?
For me it's two,
1) The character design: There aren't many memorable characters in this game. Cadwall (or however its spelled) is probably the only memorable character in the game and he is not so memorable either. Daedra lords and princes are of course iconic characters but only due to the courtesy of previous ES games, the way Daedric Princes are portrayed in ESO, they seem like only ordinary characters. And the Council of War? Who are they I have forgotten them already....
This is one thing that Blizzard gets right, they know how to create memorable characters. Please don't get flamed by the mention of Blizzard, the only reason I mentioned Blizzard is because they are the biggest competitors of ESO.
2) Dialogue Refinement / Better Script: Script in this game is unrefined. Don't get me wrong I love long dialogues and I love to read as well but in ESO, you may engage with an NPC in a dialogue for 5 minutes and you may still learn nothing because all that NPC did is just repeat himself sentence after sentence, saying essentially the same thing over and over again in different words. The same information could be delivered in two sentences in very RPG manner instead of eight long sentences.
So for me its better character design and script refinement. I would very much like to see what the community thinks about how we can improve the game so feel free to post your ideas.