I assume it's probably just going to be "sucked into the void". It looks like it's just reducing everything to nothing. [ Of course there's no way to be sure of that, but it's just the idea she gets from the way they can see it spread.

Somehow Ange manages to say it in an eerily calm way, like she's just talking about today's weather. ]

But in Wonderland there's usually nothing we can do about these kinds of things anyway. Either it'll disappear out of the blue after a while and we'll all be okay or it'll keep it up until we're all part of it.