In the Moscow and Stalingrad campaigns, there are two planes that are identical. Specifically the BF109 E7/U2 (premium squadron in Moscow).
After the big update, the users who have supported the game by buying some premium squadrons, and the Stalingrad campaign, can now find ourselves with paradoxical situations like these.
Although some will not like this proposal, a possible way to compensate the user of the BF109 E7/U2 Premium Squad, would be to transform this aircraft into its Tropical version.
In fact, historically, Jagdgeschwader 27 was transferred from the Eastern Front to the Afrika Korps in 1941, serving most of 1941 and 1942 on the North African Front. Consequently, this solution would not alter historical fidelity.
Once the big update goes live, planes and vehicles will be more likely to appear on certain fronts, I guess based on affinity criteria (I don’t know exactly how this will work). With this solution, users who have both BF109 E7/U2 squadrons can have some more than two duplicate aircraft. On this way, the current BF109 E7/U2 version would be more linked to the Eastern Front (or early Western Front), and the “Trop” version to Tunisia, and to future maps in North Africa, the Mediterranean, etc.
Obviously, a Skin update would be required (Tropical of course), and it might be necessary to change some technical aspect, but it would be a low cost solution for developers.
All the best