The most plausible later Lion-class battleship

Which post-1942 Lion-class design was most likely to be built?

The twelve-gun version is judged most likely, although the nine-gun version would be easier to build.

The question includes an ambitious Montana-like Lion with autoloading 16-inch guns among the possible studies. The twelve-gun version is judged the most likely post-1942 choice. A nine-gun version would be easier to build. These are assessments of unbuilt alternatives, rather than a confirmed construction programme.