Could modern military seaplanes make a comeback?
Short answerProbably only in niche logistics and search-and-rescue roles, not as a broad combat-aircraft category.
NotesA broad military revival looks unlikely because operating from water imposes substantial aircraft-design compromises. A narrower case remains for a large aircraft able to carry supplies and take off or land without a runway. Japanese flying boats illustrate the continuing value of search and rescue and island supply. Those specialist missions do not establish a general case for replacing conventional military aircraft.