Frankly, have been waiting a long time for CMs to speak up on what they need!!

For instance, all of the 15 spots including the default skin, of the P-51D is already full. I love those skins, and greatly respect all the effort put into it by their creators.
However, when you look at those, you can't really say that its in anyway pre-planned or laid out well. If there were any discussions to which P-51 skins would be needed, according the Events/Scenario/CT purposes, then it would have made a much more 'balanced' set.
Fortunately, other planes still have lots of space open. I hope there's some way we can categorize the skins that should be included. For instance, concerning Bf109s, the most important skin for 1940 would be those of the Bf109Es of the JG2 and JG26. For the Bf109F-4s, JG27 of the Africa Corps. and JG54 in the Eastern Front would be really needed.