Notable things I'm seeing in the illustrations of the box art. The B-24J has the Emerson nose turret and the side vision windows long left over from the tunnel gun that went the way of the do-do. Can't tell if the B-24D has a ball turret or not. I hope they've engineered it so you can deploy and retract the ball turret to suit different tastes (in flight or on the ground).
If the kits mimic the box art (which we all know they do, exactly.... ) it'll make it easier on me to turn the J into an H. I sure hope that B-24D comes with the Sperry ball turret, I hate not having one.