When do we think Final Coil Lockout is getting removed?

[Chihaya]

T9 was unlocked prior to Final Coil being introduced

Nope
http://na.finalfantasyxiv.com/lodest...18d0d45bf52d59

Specifically the parts

The Final Coil of Bahamut has been added.

and
The weekly entrance restriction on entering all four turns of the Second Coil of Bahamut and the Second Coil of Bahamut (Savage) has been abolished.

Can use the find function on browsers to find the parts