yes, I wont dispute any of the above, thanks for your thoughts.
I will note that in Europe the (French/etc factory) waiting list for Yaris hybrid hatchback is much shorter than in Australia (from Japan factory), it is 6-9 months according to the UK customer reports. We in Australia are being quoted 12 months for Yaris hatchback hybrid so it's a lot worse down under. If 2-tone paint makes a difference for Yaris factory in Europe then it may make even bigger difference to the overloaded factory in Japan too. This is pure speculation on my part. I am OK to change the order a single colour paint scheme, provided I keep my place in the waiting list.
Given they only sell ~700 Yaris hatchbacks in Australia (2022) despite massive 12 months waiting list there is even higher chance of Toyota putting a permanent pause on Yaris hatchback imports. I just don't want to waste 6-12 months waiting for a car that will ultimately not be delivered. I asked my Toyota dealer and predictably he does not know what will happen. I believe him, as it appears that Toyota production has very little visibility to Australian Toyota dealers, it looks like a lottery.