Spitfire VIII would have the Merlin 66, regular span wings (for the most part. There were a few with extended and some clipped). It would have the broad chord taller rudder, retractable tail wheel, short span ailerons and the Universal wing. It did not ever have an E wing.
The last 50 Spit XIIs and the XIV used the fuselage of the VIII.
In many regards the LFVIII would be the best compromise as it would allow for the greatest variety in skins, covering the CBI, MTO, Pacific etc. The RAAF Spits were Vc and VIIIs
In an ideal world they'd do the VIIIc, and then an LFIXe/XVIe with clipped wings, tall tail and 3 hard points for the post D-Day time frame.
That and a regular wingspan VIII with the Universal wing would be Spit heaven
Dan