FSO/Scenario wise, Beaufighter is wanted, but not needed.
Japan could use more aircraft in general: D4Y, B6N, Ki-45, J2M.
Italy also needs some love: C.200, SM.79, Z.1007, CR.42.
Would need to add the Gladiator as a counter to the CR.42 of course, for that early Africa Campaign.

These would allow for a more proper Pacific and Africa FSO/Scenario setups.
Now don't get me wrong, I'm not against the addition of the Beau one bit. I believe it should come after Japan and Italy have much better presence in the game, especially in FSO and Scenario.