B7A is indeed way, way down the priority list. Yes, below the P-47D-23.
Ki-44 is fairly high up though.
I'd say the Ki-44 and Ki-45 should be added well before the Ki-100 and J2M. The Ki-45 especially fills a significant gap (Japanese heavy fighter, which is currently filled by the 110C is events) and the Ki-44 rounds out the mid-war period quite nicely. And there were slightly more Ki-44s produced than J2Ms and Ki-100s COMBINED. (~1200 vs ~600 and 400, respectively). Only Fewer than 150 J2M2s were built, with theJ2M3 being the representative type.
I'd also like to see:
Additional Ki-43 armament options to allow for the -I and -III
N1K1-J, which I believe was the most representative type. Fewer of the N1K2-Js were produced.
B6N and D4Y to give the Japanese a much more competitive set of carrier bombers for the mid-war period.
Ki-21 as an early-war IJAAF bomber
Ki-49 would provide for a mid-war IJAAF bomber.
And as I think I mentioned earlier in this thread, I wouldn't mind the A5M, Ki-27, and G3M for scenario usage.