Some thoughts after rereading both novels:
1) Once Hawaii is liberated, the top military priority is to get the bases back operational as quickly as possible. Some of the escort carriers likely had both Marine and AAF fighter squadrons aboard to fly them in to fields that had been retaken (similar to the Marianas OTL), to relieve the carriers. Top priority at Pearl will be to clear the harbor of wrecks, repairing some and scrapping others-though any Japanese ships might be refloated and towed to the West Coast for evaluation-imagine the looks on people's faces in SF or San Diego if Zuikaku is towed in with a very large Stars and Stripes flying over the IJN starburst-she was likely scuttled at Pearl to block the harbor. Once Pearl is usable, along with the airfields, then offensive operations to the NW can be contemplated. On the civilian side, shipments of food and medicine for the civilian population, though the islands will still be under martial law, and funds for reconstruction-will be coming in.
2) Offensive operations to end the threat to Hawaii. JNAF Betty bombers from Midway are hitting Oahu once the islands are liberated-flying at night-"Washing Machine Charlie." AAF P-70 night fighters (converted A-20 Havocs) will arrive, but carrier air strikes will be needed to put the Betties out of business on the ground. The Japanese probably have an intermediate airstrip at French Frigate Shoals (and one OTL was constructed during the war, but a recent Hurricane almost sank the islet which had the airstrip), so taking French Frigate Shoals is first on the agenda (2nd Marine Division while the 1st rebuilds after the fight on Oahu). After that's secured, then you can plan on retaking Midway. That will be 1st Marine Division again, with the Army's 7th ID (OTL fought in the Aleutians in Summer '43-and are likely veterans of Oahu. Once Midway's done, then Wake-2nd Marine Division and maybe the 3rd.
3) Down Under: MacArthur was probably evacuated to Australia per OTL. The second book mentions U.S. forces in Australia (shipped either via the Panama Canal or the Cape of Good Hope) are hitting Japanese strongholds in New Guinea. Once Wake is retaken, Nimitz can start thinking about a Solomons campaign, while MacArthur takes the fight to New Guinea by retaking Port Morseby and pushing north. The campaigns in New Guinea and the Solomons probably proceed as per OTL, but beginning in 1943 instead of 1942.
4) The Pacific War is then fought generally as per OTL, but dates are set back a year. Island-hopping begins November '44 in the Gilberts and Marshalls, then Marianas in June-July '45; Leyte October '45 and Luzon beginning Jan '46. Iwo Jima is in Feb '46, and Okinawa in April-June '46. Nuclear strikes on Hiroshima and Nagasaki-and the Soviet invasion of Manchuria and the Kuriles end the war August '46.
Thoughts?