The estimated release date of Age of Aincrad is yet to be decided. AS IN NEVER ITS BEEN 6 YEARS AND NOTHING NOT EVEN A CLOSED BETA OR OPEN BETA WTF ITS A FORGOTTEN GAME IT HAD POTENTIAL BUT NOW JUST ANOTHER GAME LOST IN THE DARKNESS :( The game is still being actively developed by Cardinal Games.
For more information we redirect you to the Age of Aincrad official forum