Alright, here's some ESO stuff for you to quote.
It is a time of strife and unrest. Armies of revenants and dark spirits manifest in every corner of Tamriel. Winters grow colder and crops fail. Mystics are plagued by nightmares and portents of doom.

Four years ago, in 2E 578, an arcane explosion of energy in the Imperial City set off mystical aftershocks that swept across Nirn. Mages died or went mad. Supernatural abominations from the plane of Oblivion, the Daedra, appeared in greater numbers than ever before. The constellation of the Serpent grew so large that it dominated the night sky.
So began the grand scheme of Molag Bal, Daedric Prince of domination and enslavement. His Dark Anchors, vortexes of evil magic, weaken the barrier between worlds, threatening to merge Nirn and Oblivion into a single, nightmarish hellscape.
In the midst of this chaos, three alliances vie for control of the Imperial City and the White-Gold Tower. High Rock, Sentinel, and Orsinium stand as one, united under the rule of the High King in Wayrest,  Valenwood and Elsweyr have forged an alliance with Summerset, and Black Marsh, Morrowind, and Skyrim have joined forces and formed their own uneasy pact.
The Daggerfall Covenant. The Aldmeri Dominion. The Ebonheart Pact.
Three armies will take up arms against the Empire, and against each other, to wrest control of the Imperial City and White-Gold Tower from the dark forces of Oblivion itself.
Where do your loyalties lie?
The Elder Scrolls Online is set 1000 years before Skyrim. The  game is set in Tamriel, ALL of it. This means you can visit places from previous games while adventuring, as well as exploring new areas previously impossible to get to. Seeing as the game is based around control of the Imperial City, PvP will be a huge part of ESO.

There are three alliances in the game: The Daggerfall Covenant (blue), The Ebonheart Pact (red), and the Aldmeri Dominion (yellow). The green area is being fought over by all three alliances, and will be the main PvP area.
The Daggerfall Covenant: King Emeric
King EmericThe Daggerfall Covenant is formed by the three races of northwest Tamriel , united by High King Emeric to fulfill a common goal and take back the Ruby Throne.
The Bretons have the gifts of magic and diplomacy. The Orcs are stalwart soldiers and talented armorers who manufacture the finest weapons and armor in all of Tamriel. The Redguards are supremely athletic, and raised to be outstanding warriors from the moment they’re born.
The Daggerfall Covenant’s varied talents make it a force to be reckoned with.
The Ebonheart Pact: Nord King Jorunn
Nord King JorunnThe Ebonheart Pact is the most unlikely of the three alliances. The Nords and Dark Elves have a long history of conflict, and the Argonians were enslaved by the Dark Elves for thousands of years.
It was the Akaviri invasion that forged a bond between them. Now they are determined to control their own destiny by defeating the Empire, while preserving their own fiercely independent homelands.
The Nords are the brash, boisterous front line of the Pact; fierce warriors and expert weapon masters. The Dark Elves have a natural affinity for magic. The Argonians are the best guerilla warriors in Tamriel.
The combined strength of these unlikely allies makes the Ebonheart Pact a fighting force of extraordinary power.
The Aldmeri Dominion: Queen Ayrenn
Queen AyrennWhen word reached the High Elves of Summerset that the Imperial City had fallen under the control of the human supporters of Molag Bal, the Aldmeri Dominion was formed.  The High Elves reached out to the neighboring races of Wood Elves and Khajiit with a plea that their combined forces might prevent the younger races of Tamriel from bringing disaster to the world, as they had so many times in the past.
The High Elves were the original settlers of Tamriel and created the common tongue used throughout the continent today.  They are also naturally proficient with magic.
The Wood Elves inhabit the thick, near-impenetrable forests of Valenwood. They are supreme hunters, guides, and masters in sneaking and thievery.  They are also the most gifted archers in all of Tamriel.
The Khajiit, a proud feline race, are fearsome warriors, proficient with bladed weapons.  They stand proudly at the forefront of every battle.
The power and determination of the Aldmeri Dominion should not be underestimated.
As well as PvP, you can expect the same great PvM from the previous Elder Scrolls games to come back, with new dungeons, boss fights and characters to meet.

ESO will have many dungeons to explore, by your own or with a friend, or even with a group. You will encounter some familiar foes, and some that you have never seen before.

As far as how the game looks, don't fear. It won't be some WoW ripoff or look stuffty just because it has to support thousands of players, 
it will bring the same detail and beauty from previous games, notably Skyrim.

An ESO beta is expected early 2013.