Are you sure? Victoria Bampton (The Lightroom Queen) wrote "perpetual licenses are all still authorized exactly as before. This change only affects subscriptions".
I wouldn't be surprised anyway if Adobe tries to take advantage of some FUD to sell more subscriptions.
This warning only applies to the subscription CC version. The perpetual Creative Suite and other stand-alone licenses are, as Victoria says, are not affected. You can use PS 6 until you die!