Gogeta as seen in Dragon Ball Super is actually the second version of the character to be added to Dragon Ball Xenoverse 2.
However, Dragon Ball GT was largely redacted from the official continuity, making the Dragon Ball Super edition of Gogeta the “canon” version.
Super Saiyan Blue Gogeta, Super Saiyan 4 Gogeta, and Vegito are currently available for purchase.
The Dragon Ball Xenoverse 2 Gogeta Legendary DLC Pack 2 will be available on PS4, Xbox One, PC, Google Stadia, and Nintendo Switch in the Fall of 2021.