The 20th Anniversary edition of Vampire: The Masquerade is, with respect to the rules, almost the same as the (revised) second edition of the game (see the answer here: What are the major changes made to Vampire: The Masquerade for its 20th Anniversary edition?).
But where does the metaplot of V:TM V20 stand? I mean, is it possible to say, that the metaplot of V20 is the same as the metaplot of V:TM after book X? Or are there some major changes, so that it does not fit in into the original metaplot?