Well I know there is a potential CV rework being played with at HQ, I'm just here to toss out some potential premium CV ideas, each having a relatively unique role. Please note that these are for the US and Japan only. Britain's probably got a CV line somewhere and I want to see the flavor of that before I go tossing out any suggestions as to what their premiums could do.
Saratoga- While her sister the Lexington is already in the game (and since Lady Lex was sunk relatively early in the war, you're basically playing the refitted Saratoga), Saratoga would have a very unique ability. She could switch between playing as a CV and playing more like a normal ship with her original main battery armament of eight 8"-guns (in four double turrets). This would be achieved by pressing a certain key. This mode change would come at a cost wherein you couldn't just switch between the two wily-nily. There would be a cooldown time where you'd have to spend X amount of time in your new mode before switching back. In "normal ship" mode, you also wouldn't be able to launch or direct any air strikes (though you could still recover aircraft and planes that had been assigned orders would complete them).
Yorktown- Given this ship's fame for rapid repair jobs, I figure an interesting idea would be to give her a battleship's Damage Repair Party consumable. A possible restriction would be that it could only repair damage from air attacks.
Hornet- The second Yorktown-class. She'd be equipped (in addition to a normal complement) either with one 16-plane squadron or two 8-plane squadrons of B-25s (no benefit from Air Supremacy). These could launch one attack a piece and then only be used for spotting (and only for X amount of time; otherwise DDs would REALLY get pissed). The attack would have a pattern similar to TBs, but would have an affect like DBs (modeled after the tactic of skip-bombing). The normal compliment could then be launched AFTER all B-25s are away, but it would have an extended timer like the squadron had all just been shot down and needed to be completely replaced.
As a note, I'd love to add the Enterprise (what ship besides the Gray Ghost deserves such a status?), but I'm not sure what I could do for her special abilities. Maybe give her a combination Fighter/Dive Bomber.
Now for Yamamoto's little prizes.
Akagi/Kaga- Basically they would be like a Japanese version of the Saratoga, though they would have some differences since these 8"-guns were single-mounted. Personally I would prefer the Kaga since she was based on a BB and had more guns.
Shinano- I know they had this in the CB and she was removed due to having capacity issues. An idea I had is to give her a unique consumable similar to a BB's Repair Party. She could replenish her aircraft reserves with X amount of planes. This would only be available when she had suffered losses though and would probably only be available once or twice with the stock consumable, depending on how many planes were replaced. I know it seems gimmicky, but it could (theoretically) represent her crew taking planes out of storage. Shinano was originally intended as a support CV; she'd have enough aircraft to operate as an independent CV, but she would also have replacement stocks for other CVs that she was with.
I'd like some opinions on what people think about these. Don't be afraid to make suggestions of your own. CVs are a much maligned class, but they also represent a class that offers a lot of fun gameplay for those familiar with RTS systems.