The release of 2.1 was originally planned for November.
Yes, it is coming a month later.
Yes, Crystal Tower was meant to be here at launch.
Why was Crystal Tower postponed?
Because it was harder than Coil with ilvl 80 gear while Coil has ilvl 90 gear.
But guess what, they're fixing it.
After 2.1 guess how long you have to wait for 2.2?
6 months ...
Get accustomed to grinding and leveling other classes.
Or GTFO