There is no reason why it can't be that, just like RX10 or RX10M2 with their 24-200mm equiv. f/2.8 lenses, with the newer technology and slightly reduced sensor circle (16:9 ratio full width instead of full width 3:2, maybe multi-aspect) they might be able to push it to 240mm. Of course they will raise the price, too.No way it will be that. F4 at best, I think. But it will probably be a variable aperture lens, the XA50 for example goes from F/2.8 to F/4.5. But that one is 15x optically, but still has a 1-inch sensor.