Looks like it already has.
NATOs justification for existence ceased with the fall of the Berlin Wall. The existence of NATO was politically possible only with the existence of a hostile Soviet Union dominating the land behind the Iron Curtain. However, when the Warsaw Pact disintegrated, NATO decided to dilute itself with expansion into eastern Europe. That would have been OK so long as the political will existed to keep the clamps on Russia.
That political will evaporated with the end of Soviet communism, and with it, NATOs existence continued simply because it always had. It never repurposed itself.