Introducing new technology just because it's there is not always the wise decision...
Remember almost all the fancy new stuff what ever gismo you buy over here in the west including USA is transported on a ship from Asia powered by a good old two stroke Diesel engine! Why, because it get's the job done. No new fancy technology can compare to it's reliability and running costs.
Sure it's come a long way since Rudolf took out a patent for it, but the engine parts and principles are still the same, we have added computers to run it and it's running cleaner but that's it. BTW the computers on those things are making more shit than fun for the crew
Apparently no one could foresee just how much environmental beating a computer gets in an engine room.
So let's assume Nikon and Canon are wise companies... Then they stay on the path and continue to use proven fail safe technology in their professional series of equipment - Sure they introduce new features but seriously don't expect huge technology leaps for those intended segments IMHO
They will introduce the sketchy new gismos in the consumer products...
Sorry for the sidetrack
I'll look forward to see what you come up with should be included, traditionally many of you here are spot on with your predictions!