It's not a dumb question at all.
The WoP2 B-17G was A2A's first 'native to FSX' product, meaning it was not simply an FS9 model made to be compatible to FSX. The WoP2 P-40 was their second native FSX product, I believe. You'd think the two models would have been AccuSimmed the same way.
The existing WoP2 B-17G was of very high quality to begin with and apparently just needed some touching up and some relatively small changes to the cockpit for animations, etc. I think it was also easy to make AccuSim a 'bolt on' because there was only one variant of the B-17 to work with. It was also a single, standalone product that was only available through the site so there wasn't the complication of adapting multiple versions of the model for AccuSim.
The B-17G was the first AccuSim product to have the maintenance hangar that graphically shows the condition of individual engine parts, by the way.
When it came time to Accusim the P-40, there must have been other considerations that drove A2A to mate AccuSim with a completely new model. I think that part of the reason is because the WoP2 P-40 was available in at least two versions--an early 'standalone' model found on the Aircraft Power Pack 2 DVD, and the full download version that had multiple variants of the aircraft. Perhaps all the new features and animations required so much work that it simply wasn't feasible to release all the new 'update' files and textures in an AccuSim upgrade.
But to answer your question, I don't think the B-17 will be revisited anytime soon. It certainly hasn't been hinted at or announced as a future project. (You never know though; A2A surprised us when they "AccuSimmed AccuSim" by releasing the Captain of the Ship sequal expansion for the Stratocruiser. Lessons learned from the Spitfire/P-40/Mustang trilogy and any future projects might be reason enough to someday revisit the B-17.)
This is only my uninformed opinion, BTW.
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