The big 1.6 patch that adds a new Justice system, a Champion system for high level character improvement and much, much more to The Elder Scrolls Online has been delayed, according to a ZeniMax
source.
Originally it was coming in late February, but has now been pushed to early March to deal with an audio bug, according to a post from ZeniMax on a European ESO forum. The patch is currently available on the ESO's test server.
The 1.6 update, of course, clears the way for ESO to drop its mandatory subscription model and become The Elder Scrolls Online: Tamriel Unlimited on March 17. The console versions of the game, out June 9 on PS4 and Xbox One, will also be based on the 1.6 update.