Pardon, some of us are used to just using spoiler tags everywhere due to the amount of people not yet finished with the MSQ. It’s a habit.

“Ultima Thule” also has real-life connotations to it that I think might have resulted in the lore team choosing it as the final zone’s namesake over “Terminus”. Terminus is more in reference to the blasphemies that we’ve fought, not necessarily a place. They don’t manifest from Ultima Thule, but rather from within an individual as the product of panic and despair—they don’t even manifest in Ultima Thule itself (I don’t recall any mobs with the name “Terminus” present there; I’ll have to swing by and check later).

Terminus is an end—the people that became blasphemies later ceased to be in their entirety, hence “the end” of them. Ultima Thule is simply a place at the edge of the in-game universe—hence the name “beyond the borders of the known world”. Even if it’s described as the “end of the universe”, the universe is massive. For all we know, it’s not the very end. Merely the furthest anyone has managed to travel. Much like our own universe.