Not much is known about our participation and we're currently in the harsh process of deciding which of the three factions we'll represent. If you're not familiar with the three we've prepared a short unbiased presentation which might help you with the choice.
This is all taken from the official wiki. (No it's not)
Let's paint it black and call it a drow. Racist much?
Wow. Just, wow. Can't explain further, too impressed!
As you can see we're in for a hard choice and right now we're very torn about where to go. The Elder Scrolls Online is set to launch april 4th, but expect updates leading up til the release.