No more Mage and Demonic Carbuncle?

Going through the guided experience eventually gets to a point where you have the option to destroy the demonic carbuncle and start an invasion.  There is a conversation that states more carbuncles will spawn later on.  After destroying the carbuncle, surviving the wave, the mage briefly shows back up auto closes the portal then leaves the map.  Never get to experience the "magic" portion of the game.

However since that event, the mage nor any carbuncles have come back at all.  Its been at least 30 game years since that event.