The B25 screenshots on the front page tell us a few things.
The skin will be a C/D. There will be a strafer option. The strafer option will not be a separate plane in the hangar, but rather a loadout option (same skin, same tail codes, on both glass nose and solid nose screenshots).
We've seen footage of a G with the big gun. G is too different from C (I believe) that it has to have its own airframe. No speculation on any J models yet. Never look a gift horse in the mouth, though, C/D and G are sweet as-is.
So, tailor your skins for C/D (including strafer models) and G!