I do think the game would benefit from a more realistic simulation for replacement of aircraft and air crew, especially on carriers. If anything the war taught us was that both planes and especially air crew was not easy to replace and usually took time to do so.
Both aircraft and crew should take some time to become available and trained enough for ships to partake in missions.
During the battle of the Coral sea for example the heavy loss of aircrew meant that Zuikaku could not partake in the Midway campaign due to heavy loss of planes and air crew.
I don't think there need to be any super detailed system but carriers should be far less likely to appear in battles during following months after heavy losses to its air complement and if they show up should have their air complements at less than full strength.
Even land based planes should take some time to replenish since we simulate not only the physical planes but also the crew. A shortage of either will mean less than full complement of operational planes.