After that it will take enough of Oracle's rich paying customers who use Macs to want Virtualbox on ARM Macs before Oracle would port Virtualbox over to ARM (in my opinion, of course, and if it can be done). If Mac moves to ARM, Virtualbox won't run on a Mac anymore. As mentioned before, Virtualbox is not an emulator, so it cannot handle iPhone & iPad code. Apple's phones and tablets use ARM, and an emulator is needed to run ARM code on an x86 CPU. So it is unlikely that Oracle will desire to port Virtualbox to ARM as things stand now. Virtualbox is tuned to the x86 CPU environment, not the ARM environment.
While one could wish for lots of things it is important to remain grounded in reasonable expectations so we don't get stuck in 'wish mode' and never get anywhere.
