Ok no, at this point this has GOT to be nonsense lost in translation, bad reporting, or outright fake stories. Larian literally just confirmed all the classes and subclasses that will be in the game at launch
less than two weeks ago.
Pacts aren't subclasses they are another choice in Warlock progression.
Your subclasses are your choice of Patrons: At first level you pick Fiend, Great Old One, or Fey
At 3rd level Warlocks can further customize their class by choosing a Pact. Pact of the Blade, Pact of the Tome or Pact of the Chain.
Currently in Early Access we've had two subclasses, Fiend and Great Old One, but only one Pact has ever been available, the Pact of the Chain.
