I love hypothetical modeling, some who have been around this forum for a few years will likely remember my Italian ME-163 Komet in North African theatre camo.
The alternate history can be a great relief from the reality based stuff.
I have two "real" projects and two alternate history projects on the go right now.
The "real" ones are a 1/72 Czech SAAB Gripen and a 1/72 Czech Sukhoi SU-25 Frogfoot.
Alternate history:
1/72 RAF A-7 Corsair II, running on the premise that the Sepecat Jaguar never made it into service. It will be in mid 80s wrap around tactical camo serving with the RAF in Germany.
1/144 Soviet four engined interceptor based on the B-58 Hustler. The premise is that the Soviets captured a B-58 and ordered Tupolev to reverse engineer it into an interceptor. I've got the Academy B-58, I'm just trying to source some "Acrid" and "Apex" missiles for her.
Got to keep the hobby fun.