Sony has officially made PDF data sheets for newly available sensors available on its website. This means that the new models are definitely not only available for Sony&s own cameras, but also for those of other manufacturers. A small side note here: In dialogue with various Sony employees, we have already been assured on several occasions that the Sony Sensor Division actually acts relatively independently of the in-house camera development. This means that many sensors should also be available to third party manufacturers no worse than for Sony itself.
In this specific case, you can therefore once again forest in the data sheets and thus extract speculations for future camera models.
The IMX410CQK sounds particularly suitable for 4K full-format filmmakers: This BSI full-format sensor achieves a full 6K readout with approx. 40 FPS. In a 4K Read Out mode it even comes close to 100 FPS. With this sensor you won&t be able to expect a clean 6K-4K full format downsampling in future cameras at more than 30 fps. To what extent a possible binning at the 4K-50-100p readout achieves a comparable quality remains the big question.
Also interesting are the possible frame rates for medium format cameras: The 100 Megapixel IMX461ALR sensor can output 12 bits up to 30 fps in 4K (with subsampling/binning) and even knows a 4K wide mode (for example for 3840×1600 pixels) with up to 50 fps. This allows medium format cameras with 44mm sensor horizontal to become 4K capable in the near future through the bank.
Sony even has a medium format chip with 150 MP at 53mm sensor width in its program (IMX411). This still achieves 24p with almost 5K binning (4728 x 3545). And a close 40p with a corresponding 5K wide reading of 4728 x 2126 pixels.
The most exciting news, however, comes from SonyAlphaRumors, who have already received Specs for two upcoming 8K full format sensors from an extremely reliable source.
First, there is relatively little information, but it sounds quite plausible: 36 megapixels, which allow a full 8K readout with 7680 x 4320 Sensel. And that at 60fps in 10 bit. The interesting thing is that the sensor is read out in 16:9 in this 8K mode and can even use a bit more than 36mm width. Exactly it is 37.48mm which corresponds to a crop factor of 0.96, but due to the 16:9 format remains completely in the E-Mount image circle. Basically, it is a Multi-Aspect-Ratio sensor, which is more familiar from MFT cameras like the GH5s. It should be equipped with Sony&s Phase Detection Auto Focus (PDAF).
The second sensor sounds a bit too high-resolution for full-frame 8K recordings, even though there is some more detailed information about the video modes available here:
It should be able to read 60 megapixels with 16 (instead of 8) channels and reaches the following video frame rates: 8k30P@12bit, 8K60p@10bit, 4k60p@12bit and FHD300P@10bit. However, these also fit excellently to the frame data of the first mentioned 8K sensor, which in turn should look good for an upcoming Sony A7sIII.