[FALSE] Versus XIII Is Canceled...?

Of course it has, Fabula Nova Crystallis is the umbrella under which they put 13, 13-2, Versus and Type-0. Even if the story as such is not a link, the design and general feel of the games are.

You clearly haven't played Type-0 because it feels NOTHING like XIII and XIII-2 (which themselves are pretty distanced from one another). And we don't know enough (read: anything) about Versus to make such determinations.