@YLearn Yes, and I expected something like this, but from some different, more-eastern sources, and now that there is precedent, we may be able to expect others will follow suit. At least this was not a mandate to switch, only to also offer.
What Vint Cerf explained to me was that this should be the last version of IP, and we will switch to something completely different in the future because we have reached the limit of this architecture. I'm not sure about that because people really hate change, but he may be correct.