The fire-support gap left by Zumwalt's gun conversion

What replaces the Zumwalt Advanced Gun System in the anti-surface and shore-bombardment role?

There is no direct replacement identified here; combat air support would probably continue while the amphibious fire-support shortage remains.

No direct replacement is identified for the Advanced Gun System's anti-surface and shore-bombardment roles. Combat air support would probably continue to carry the burden. Amphibious operations in the East and South China Seas expose the resulting shortage of fire support. Providing hypersonic weapons does not settle that operational requirement.