Let's take 'em one at a time.
Some of the jobs we might have in a decade are VR fashion designers,
Got those, in Second Life. Worldwide demand: irrelevant. Not even a blip. The new VR? Existing game artists will shift to that role without even slowing down. Prospects of expansion, not great.
3D food printing designers,
Not happening, since 3D printed food that qualifies for the name is largely inedible.
online education coordinators,
Got those. Khan Academy, et al. A half dozen people can service a hundred million, and they're contracting, not expanding.
commercial drone delivery operators,
Will get automated even faster than driving trucks.
Nothing to clean up, and zero ways forward on that front. Eric Drexler's vision got us as far as MEMS and has stalled out.
Got those. They're called cam girls. There's already a vast oversupply.
I've always been told my imagination is pretty good, and I've put quite a bit of thought into this, because anybody who succeeds gets rich, and being rich looks kinda nice. And here's the thing: whatever an imaginative person thinks of at this point, starts out automated. A handful of designers and engineers create something, and the production line required to bring it to the masses does not involve mass labor. It involves machines. Similarly for new services. For anything that isn't effectively prostitution, mass communications means a handful of people can fill worldwide demand. Your examples of SEO optimization consultants and online education consultants have already demonstrated this.
Leaving aside the question of what to do with the tens of millions who will never be qualified to be VR fashion designers and similarly creative jobs, because they have the design sensibilities of a brick, how do you employ the tens of millions who can learn, but have nothing to work on?