Only Three new Turns?

[Xayoc]

I hope this is a mistake but from the achievement list there is only 3 for Coil 2, T1, T2 & T3.

Mapping the Realm: The Second Coil of Bahamut I Discover every location within the first turn of the Second Coil of Bahamut. -
Mapping the Realm: The Second Coil of Bahamut II Discover every location within the second turn of the Second Coil of Bahamut. -
Mapping the Realm: The Second Coil of Bahamut III Discover every location within the third turn of the Second Coil of Bahamut.

From the full patch note, there is no T9/T4 and it looks like they are not hiding any boss. Sigh...this is really depressing if it is true.

Turn 9 is the Nael Van Darnus [White Raven] fight. Probably why there is no achievement for it.