The latter at least is most likely the sensor going in the next medium format Fujifilm GFX that they keep showing in prototype form. The GFX lenses are generally highly regarded. No doubt the price will be astronomical
I hope Sony pays attention to their amp glow situation, otherwise the existence of these counts for nothing.
TBH I’m more interested in seeing if Panasonic let their full-frame sensor out of the factory in mono form...may be another few years before that happens