Personally, I do find it highly unlikely the domain will go away. They'll do something to keep it around. As the article states toward the end, "The IANA may fudge its own rules and allow .io to continue to exist. Money talks, and there is a lot of it tied up in .io domains."
That's what KGB wants you to think
These days however, the Russian intelligence landscape is more complicated, with multiple semi-private organizations, informal groups, and other stakeholders.
https://en.wikipedia.org/wiki/Simpson_Tide
Ironically, there's some unintended truth in their reference (i.e. to all intents and purposes the KGB hasn't gone anywhere and basically is still around, just renamed/reorged) but that's an entirely different thread.