Judging by the screenshots, a Core 2 Duo, 2GB of RAM, and a GTX 8800 will do you just fine

It was 8800 GTX and it won't do as most of those suffered from failure during the soldering of the GPU on the board, leading to desoldering in about 4-5 years of use

. Since the Elder Scrolls Online seems to be taking (too) many clues from WOW, I guess that whatever gaming stuff currently available will do.
By the way, I doubt the game will be released before 18 good months, so your post is currently totally useless as in 18 months, many things will have evolved in the wonderful hardware world.