A Part, and yet Apart

[Fenral]

Did the Seventh Umbral era truly end?

It "ends" either when you beat Ultima Weapon or when you stop the regeneration of Bahamut Prime beneath Northern Thanalan, both of which take place 5 years after the seventh Calamity (along with every single event since you got off the wagon at the beginning of A Realm Reborn). Current Word of God is that the Astral and Umbral labels are mostly arbitrary, and that declaring an Astral Era is enough to make it so.

However, I remember an event from the Seventh Umbral Era story in 1.X, in which I believe it was Urianger and the Circle of Knowing member of your choice brought up that certain types of magic (i.e. golem creation) were only possible in an umbral era do to some special aetheric somethingorother, but that particular note seems to have been more or less quietly retconned by the presence of astral-era-created golems in colonial Sharlayan.