Tier 1 – Black Swan
Tier 2 – Weymouth
Tier 3 – Caledon
Tier 4 – Danae
Tier 5 – Emerald
Tier 6 – Leander
Tier 7 – Fiji
Tier 8 – Edinburgh
Tier 9 – Neptune
Tier 10 – Minotaur
My source: A thread from on the WoWS official forum, not an official release from WG, so things could change.
