The near term anti-ship armament would be LRASMs, which are not actually very large. A B-1 can carry 24 of them internally at one time and the B-2 can carry 16.

The near term anti-ship armament would be LRASMs, which are not actually very large. A B-1 can carry 24 of them internally at one time and the B-2 can carry 16. The B-21 is smaller but still large enough for a good load. 12 or more would not be surprising. No one is air-launching tomahawks or SM-6s (probably). The future is OASuW Increment II (HALO) which is a hypersonic anti-ship missile. The LRASM is basically a stop-gap until that happens. That missile will likely be a similar size to the LRASM given the size limitations of the platforms the navy wants to launch it from. The security situation in the Pacific is also very unlikely to improve over the next 10 years.