Initial thoughts:

Warrior Class - I'm not sure about this one, as the order date seems far too early. Consider the following:
  • You've talking about introducing a new gun (unless they are going to re-use existing 9.2s, which isn't the optimal solution). That gun has to be designed from scratch, a proof copy built and tested, then put into production. With the requirements for 16 inchers eating into gun production capability to the extent that it's already displacing 6 inch production, is it really likely that Britain is going to sink so much resource into a new gun type?
  • Added to the new gun type, you're talking about adopting not one, but two new technologies in this class. Given that, Goodall is not going to try rushing this design through - this one isn't just a "cut and paste" upgrade of a previous ship, it's a bespoke new design. EinC is going to want a big input to this, and the design process is going to be thorough. Given that design work won't start until post APOD, and that the new machinery has to be designed, I don't see that it's realistic to lay this one down before 42 at the earliest.
  • Given that these ships aren't going to be laid down until 42 (maybe longer if the needs of the 16 inch programme  still sucks up gun production resource), what to build in the meantime? Well the Fleet is crying out for more 8 inch cruisers, so why not lay down a couple? If you laydown 3 ships, you coulduse one of them as a testbed for AC and electric turrets - this has the advantage of ironing out the bugs, and de-risking the Warriors when you get round to building them.
Colony - If you cancil one ship in the class, you get to complete 4 of the remainder as 12 gun ships (which, with an eye on likely operations against Japanese cruisers in the Pacific looks like an attractive option. It also frees up a slip for something else (repair work, building a a utility carrier?) that isn't affected by the gun bottleneck.