Apparently the Elder Scrolls online will be playable at Gamescon in Germany on the 22nd t0 the 25th of August. Currently the game is in private beta (and i didnt get an invite) and is to be released later this year. However if they are advertising that the game will be playable at Gamescon in August that means most probably that Elderscrolls online will not come out until August. That really sucks.
The even will take place in Cologne, Germany.
Elder Scrolls Online features the entire continent of Tamriel, a 1000 years before the time of Skyrim.