Originally Posted by
linay
Anything it reveals in FFXIV will be "FFXIV things" unless it's non-canon stuff like crossover temporary events. It can also be something that is taken from Nier, but that is irrelevant once it happens in Eorzea/Norvrandt.
Here's a question: Has anyone seen anything from this raid that could never happen in the world of FFXIV that already has Omega and all the capability it has shown, not to mention all other magic and technology? I think the answer to that is no.
And speaking of Omega, the origin of it and Midgardsormr could very well have been the plot of a different franchise. But even if it was, it wouldn't have mattered as, when they arrived at Eorzea, they became a part of FFXIV, just like whatever will be in Yorha will be a part of FFXIV.