Katori, the ship that was deleted from the game in the June of 2015 (and replaced by Hashidate), is back from its grave, ressurected as a tier III Premium.
From my secret source.
http://i.imgur.com/7jUs4DO.jpg
http://i.imgur.com/VYixhV8.jpg
http://i.imgur.com/55sAoe7.jpg
http://i.imgur.com/f03P2SV.jpg