None it's just those Migs were the USSR's mainstay in the cold war era, which seems that that's the era Airfix is covering with their recent jet releases, Maybe we'll even get a re-release of the Illyshin IL-28 and maybe add the Sukhoi Fishpot and Su 7b Fitter for good measure. (Actually I'm just throwing pebbles in the pond.)
As it is I don't make modern jets or any jets for that matter, but I must admit I'm tempted by those early jet aircraft and often picked up a F100 or Voodoo or Scorpion etc as these have some very interesting shapes only to put them back. But I think I'll stick with my WW2 German, Italian, Japanese and French aircraft of the 1938 to 1946 era as that really gives me enough to be going on with. Still hoping the Me 262 makes it to SA in the near future.
Remember we do this for fun John the Pom
PS: - Plus many WW1 & tween war aircraft, various soft skinned millitary 1/72 kits and , artillary pieces, plus various 350 & 600 scale WW2 warships. JtP