The Spitfire and Bf109 lineups are being refined to be more representative and to fix the hodgepodged Spit IX.
The Spitfire lineup that has been suggested is:
Spitfire Mk Ia, +12lbs boost (current is +6lbs boost, but labled +12)
Spitfire Mk Vb, +12lbs boost (current is +16lbs boost)
Spitfire F.Mk IX, Merlin 61 at +15lbs boost without the option for the .50 cals and rockets
Spitfire LF.Mk VIII, Merlin 66 at +18lbs boost (new model that Pyro was unsure about the need for so is the least likely to show up)
Spitfire F.Mk XIV, +21 pounds boost, perked (Current Mk XIV is at +18lbs boost. It will probably stay at +18lbs boost, but might go to +21lbs)
Spitfire LF.Mk XVIe, Merlin 266 at +18lbs boost, clipped wings (+25lbs was requested, but the performance may be too much for AH)
Seafire L.Mk III (replaces the Seafire Mk IIc)
The Bf109G-10 is no longer going to be in AH. My guess is that the Bf109G-14 will be added and the Bf109K-4 will replace the Bf109G-10.