I'm not "in the know" about this but I would assume that since HTC is concentrating on just AH that it would have to model these eventually. After a year or two of development I'm sure most of the variants will be done and there must come a time when _all_ the planes will be there.
Otherwise, what to do in the 3rd year of development? They could, I suppose, model the UFOs from the planet Trivalgo who were monitoring the development of our burgeoning civilisation.
What would really be cool is that when they're finished with the planeset they could spend 6 months/year developing missions for the cons!

Here's a suggestion: Salivdore Dali terrain and Peter Max paint schemes, commanded by Blue Meanies (circa Yellow Submarine) from the ground.
-sudz-