Could costly, slowly replaced smart weapons bring back simpler naval guns?
Short answerYes; missiles may dominate the first weeks, while the following months could depend on weapons and ammunition that industry can replenish.
NotesThe question links expensive smart weapons and slow replacement to renewed use of simpler naval guns. The forecast is that missiles would dominate the first two weeks of a future war. The following six months could look different as available stocks run down. That is a speculative warning about sustained supply, without a detailed production calculation or a firm prediction of which gun systems would replace missiles.