Mysidia: When and How will it show up?

[Balipu]

Actually WoW only uses that name for the planet. No continent or kingdom shares the name.

Back to FFXIV though, given the Sharlayan tradition of restricting nearly all knowledge from there, it may be possible that Sharlayan is identified as a city, an island and a nation of islands because of how little everyone outside the place knows of it. Actually, given how hellbent they can be about hiding their info away, they might probably hide enough of it from their own citizens.

Actually no. It is not only the planet. Only the other places have alternate names. Like for example Eastern Kingdoms. It was obviously not named as such when nobody knew that Kalimdor existed west from them.

https://wow.gamepedia.com/Azeroth_(disambiguation)


Regarding Sharlayan you are absolutely right. I mean when Leveva wanted to spread sharlayan astrology they dressed up several girls as Leveva and left them bound and gagged on the streets of Limsa Lominsa to cover the escape of the kidnappers of the real Leveva. They do positively insane things to protect their knowledge.