Let's keep Character Crossovers from other Square-Enix titles out of FFXIV.

[Fatestorm]

Might I point out that all of the Final Fantasy games take place in the same universe, but on different worlds? Well, most of them anyway.

I don't mean to be obtuse, but what does this even mean? Like different planets in the same solar system? Different solar systems? Where can one obtain this information?

Adds Depth and Unity to the series.

Not if it destroys the depth and unity of the story.