Personally I would like to see more flyable torpedo planes; they are such great fun to use. A B5N and/or a B6N would be top of my list, followed by the TBF Avenger and/or the TBD Devastator. Other than the Devastator all were surprisingly versatile, and would add greatly to Pacific campaigns.
Oh and thanks for adding rockets to the armory of the Mosquito. Much more versatile (and realistic) now.
But you left off the same for the P-51!
Well, perhaps in 4.12.