Well i don't know how long you have been missing so:

French Navy added. (fast, low range, very hard hitting)
Soviet navy added.  (slow, long range, great spread, hard hitting and armor piercing)
Italian navy added. (completely broken)

Tier 5 subs added.

Tier 4 fighters added. (tier 3.5 is on the test server)

Tier 5 scouts added.  (broken)

Oh nad Kaiser is going to merge with nebraska. 

Also there is a new room type "World At War".

It's like normal rooms with awesome exp, crazy ship speed and reload.

Capital ships speed cap is 50 knots.