To sum up...
The titans who were roaming the land have been eradicated.
Historia is queen.
Armin, Eren and Mikasa have seen the sea- something they had only read about in books.
Erwin is dead-Hanje is now Commander of the Scouts.
Armin is now in control of the Colossal Titan.
Layla is in possession of a new Titan. Not even she does know the extent of this power and this makes her a target.
Bertholdt is dead.
Reiner escaped with the beast titans human and another Titan.
Annie is still encased in her crystal cell.
Layla and Captain Levi are together...