I am thinking of someone who is "trained" in this new English, will they be able to read the "old" English?
I agree with the majority of posters, leave English alone. It can adapt as times change and as it has to.
Just as you can make out that posting with the original Chaucer spelling, so SoundSpelers will be able to read Traditional Orthography, sort of. But why will they bother? They'll just download the work, click an icon, and have it in SoundSpel.