This truly was a decisive battle.
Carrier reinforcements that I'm aware of:
Japanese:
CV Junyo in 2 days
CV Hiyo in 55-ish days (or 110 if I decide to not accelerate)
CV Taiho, armoured carrier, April 1943
3 x Unruy CVs from Sept 43 to Jan 44
Allies:
CV Hornet: within 2 weeks
CV Wasp, 3 or 4 months
6 x CV Essex class ships from mid-43 to Dec 43
20 x CVE and CVL from Nov 42 to Nov 43
+
2 more British
Indomitable Illustrious class carriers during 42
At the moment, Allies have just CVL Hermes and (I think) one proper British carrier intact. Both at Sri Lanka, India or Mombasa. They are smaller than the US ones and while they have good fighters(Sea Hurricanes and British import version of the F4f Wildcat, the Martlet) their offensive power of Swordfishes downright sucks. Only good thing about those carriers for the Allies is their heavy armour.
Gentlemen, we have won a Decisive Victory. The Sea is ours.
Edit:
question related to our CV production. CV Shinano is already laid, but her construction has been halted for the last 2½ months. Her completion date at normal rate of construction would have been early December 1944. We now have the resources to build both Yamato and Musashi with no hurry, and no need to accelerate the Hiyo, or well, anything at all! I have been considering continuing with the Shinano. What do you think? 255 NSY points a day. Junyo and Hiyo are just 84, Unruy class carriers 90. But the Shinano, is BIG! Arrives very late but now we can expect to actually have some carriers and planes left until mid 1944.
Accelerating, ie. double the rate of build, costs 3 times the NSY points. Accelerating Shinano eats the points big time... Maybe build her at normal rate until Yamato is finished, then accelerate her for a month or two?