I know It is too early to ask for, but I would suggest a more sophisticated damage model for the fleet. i.e., a torp hit fore or amidships=slow the boat 1/3, 2/3 or full stop (and fleet, if boat hit is CV) possible fuel leak, same torp aft=lost rudder, deck bomb hit=unable flight operations if the boat hit is CV (temporarily, or permanently, depending on weight, until reach base port for repairs), turret damage otherwise, and so on... I don't care that much for the eye candy, that is, I would like smoke and fuel effects, but I'm more focused on the modelling of the thing. Now is pretty much all or nothing.
Also, I would add fuel issues for the TG, and able Ports for refuelling TG.
And Subs

OK OK, Not the time for a Christmas List, but since It's still very close....
Cheers,
Pepe