https://www.defensenews.com/naval/2018/02/15/its-official-the-navys-new-stealth-destroyers-will-be-ship-killers/

＞The service’s 2019 budget request includes a request for $89.7 million
＞to transform its Zumwalt-class destroyers by integrating Raytheon’s long-range SM-6 missile, which can dual hat as both an anti-air and anti-surface missile,
＞as well as its Maritime Strike variant of the Tomahawk missile.

この辺だな
この改修案が通った場合に乗員が増えるかどうかが知りたいものだ