I say it is time for a forward sideways-looking camera for exiting corners or sharp crossings. I do not know if this exists but I have missed it a number of times.
That reminds me of a small project where the British Army gave a budget to some soldiers to add "accessories" to a main battle tank - one of the things they did was add sideways looking cameras at the end of the main gun so they could use it to see round corners.
My 2013 Volvo can be fitted with exactly these as an original part by the dealer (it seems they were not available with the original order); the module is placed into the Volvo logo, and the driver sees a split image in the infotainment display.
But like the Audi A8 it's not exactly a cheap car; maybe it will be available in more cars in a few years (or once some patent expires?).
The Ford Edge has had the option since 2015. Looks like the Explorer got it the next year. The Subaru Ascent has it for 2019. I'm sure there are others that didn't come up in the first couple pages of my search results.
So many problems in such a small package! Security and privacy aside (sic!), I'm not convinced this would help safety: people are notoriously bad at interpreting images from multiple points of view in realtime.