A juiced up G3X with that sensor would be a nice touch. Would need an EVF, though. Probably have to limit to around 400mm equivalent to keep the lens size sensible.
f/11 at FF is not the same as f/11 at 4/3. I think Canon engineers do understand the two stop difference. They might go to f/8, but even that would be pushing well into diffraction territory. 300mm (600mm equiv.) at f/8 only requires a 38mm objective, but in practice a super zoom would be larger, and from a length perspective, 300mm is 300mm. I think it would depend on marketing decisions of reach vs portability and that kind of decision is anybody's guess. Nikon went whole hog with the p1000 with a 539mm f/8 (at the long end) and a tiny sensor, and it is actually a fun camera, but huge. Notably, the p1000 has no perceivable increase in detail from 360mm (2000mm equiv.) to 539mm (3000mm equiv.), but then, the same has been said of the RF 200-800 between 600 and 800. This would be an interesting opportunity for a DO zoom. I have a copy of the EF 70-300 DO and for a first gen lens it is actually pretty decent and very short for 300mm.
That was a thought I had, as well. But empirically...
