Additional events to put to use additional planes is a good point. For instance, the Kamikaze plane wouldn't be of much good if it only showed up in the Museum, or when you wanted to make a specific mission for it through the Mission Editor......an Editor that not very many players know how to use.
I've got a Kamikaze plane in one of my "optional" mods for OTC...."Tokko's Revenge". Although it doesn't work as expected (it only heavily level bombs a target), I made sure it appears on several Aircraft Carrier's to be launched as the other CV based planes would. Adding it to several other land based sites would be appropriate too.
I've not looked at what Lurker did with his planes, so I don't know if he set up plane bombing routes or not......but yes, that's something that should be done. Again, there's little point in adding planes if they aren't used or left in the inventory.
You pointed out Balikpapan as a bombing site. A site I know all too well, due to my uncle (Father's brother) who's B-24 plane is still MIA from a bombing run in Oct. 1944. Dad was in the Pacific (his Tank Battalion left the States in late 1942) when he heard the news about his younger brother. Something he had a hard time getting over since his brother only joined the Air Corp due to Dad's letter's about the places he'd been to while over sea's. He qualified for pilot training, yet an offer came to him for a tail gunner position because of his small stature. He took it, because he thought the war might be over by the time he finished flight school! I have every intention of adding the 307th Long Rangers to the game.
What else you got?