Auto accuracy got buffed.
Overheat meter.
Subs (will annoy you to no end) unless you play CV only where they become somewhat bearable.
2 new nations (rushing france and high angle high range SN)
T5 scouts that can outrun fighters and have sight range long enough to make it nearly unkillable to AA when taken care of.
T4 fighters that cause untold ammounts of grief to everyone without T5 scouts.
CV patch that made USN the best nation for FW CVs (ruining IJN and RN while doing so)

There are some new EBBs for every nation but those are basically beefed up repaints of regular BBs.
France has premium ships ripped from KM/RN.
Soviets borrow their premium BB from USN.

Olives are points you use to buy premium items with.

Anything new to the overheat system? when I left it was hold F to go into overheat, move faster for a few seconds - based on engine and crew factors- and then it would automatically pop back down when the engine couldn't handle it anymore.

Also all of my ships were on the Yamoto server... which doesn't seem to exist anymore. I hope I don't have to restart from scratch.

Alright, also what kind of Auto FCS accuracy buff are we talking about, is it like, auto FCS can cross the firelines now?

Auto FCS got a accuracy revision buff.
I think it's the same as aiming now but i'd have to check.

Otherwise it's the same old thing.

Alright, well the CNET download finally finished(150KB/s? really guys? I'm on a 15Mbit connection :< ) time to go see if i can access my ships, and if i can - what server they're on

mmm it says that Yamoto and Iowa merged into Nebraska, but I'm a level 1 on both servers. (I was level 52~)

Alright, so I guess I gotta put in a ticket, since all of my stuff is gone, and nothing's in HQ

Use the FTP when downloading the game, its faster since CNET doesn't put NF on a prioritized server.