Online gaming with easy access to "current rules including changes", will be much more problematic for those wishing to run D&D 5.0 instead; but in person gaming with access to real printed copies, will be out of WOTC's control....forever.
Ok, now that I've had time to process this a little more; I think this is simply their announcement that D&D is going to transition to a digital gaming environment in a much bigger way. They don't see the future of printed hardcovers being as big of a money maker for them, as the online gaming...
White Box, Fantastic Medieval Adventure Game:
.....which is based on Swords & Wizardry White Box, which is based on Original D&D.
And then as a Fall Back Resource:
Old School Essentials, Classic Fantasy Rules Tome. Just for any details I may wish to refer to, built around the same overall...