The repairs after the Fritz X hits in late '43 included removing the Walrus planes and adding a half dozen 2 pounders around the catapult, adding two more 2 pounders on the bridge deck, adding another AA control radar to the aft deck house, and I'm sure a bunch of other things. Academy gives you two bulkheads, E-49, to replace the gun tub/bulkheads for the '44 fit on the bridge. The holes around the catapult are easy enough to fill with .035-.040 rod and paint to blend in. The single AA control is shown but not explained in the instructions. Basically fill the two holes in the riser and just glue down one unit instead of two.
I'm sure someone, Tracy perhaps, has a long and complete list of things needed to backdate the Warspite, but it sure seems like it can be done pretty easily.
There are other corrections needed to the kit, mostly minor stuff, but still wrong. I can't spell them out here at the moment however.
I'd love to see a pre-1937 version from someone. There's no way to do that from the Academy kit but maybe someone else will issue it? We can hope.