I think this would be a great idea too. Many of those same tools could be used for post-production as well, now that I think of it. Although they do already have a few tools that could be used will classical. For example…
In terms of Channel Strips I feel the Scheps Omni would be great, because it can be transparent and precise when it wants too.
The DPR-402, C1, H-Comp, MaxxVolume, MV2, API-2500 should all function transparently enough. With H-Comp you’ll either want to turn the Analog circuit off or set it to 1, which seems to be very API influenced.
In terms of eq Q10 is transparent, as is H-EQ when its filters are either set to Digital 1 or 2.
Then there are generally useful tools like the C4/6, F6, Smack Attack that will be quite useful.
So its not a total loss. At least there are some already practical solutions we could work with. But I agree, some nice funkadelic new tools would be great. Maybe an compressor or the 737 channel strip or the Sontec eq, or maybe some Focusrite emulations of you want to go the modelling path.
Or, thinking differently, perhaps a reverb that will place an instrument or a section within a space, but also in relationship to each other. Or maybe it could emulate microphone positions and emulate bleed from other sources. That could also work well to emulate drum room mics.