Sure.If by chance, Panasonic does not gimp features and releases a FF version of their G9, they could very well command a premium price over the Sony A7III and smash it out of the park! Wouldn't that be something?
But where are the lenses?
It took Sony 5+ years to get to where they are now.
Can this Panasonic FF system lasts 5 years when both Canikon have entered the market? I highly doubted.
However, if they don't introduce phase detect AF with their first FF entry, that could very well be their achilles heal that prevents conquest sales.
We soon shall see...