Just seen that. Who knows?
If I were to guess, I'd say she's unlikely to join another agency or pop up an AW any time soon.
I'd say it's more likely that she is travelling, doing something else, deciding what to do next, or maybe has retired, and Allure are keeping her profile to increase traffic, a bit like estate agencies keeping ads of properties sold or let long ago.
We'll see...
In the meanwhile, if anyone sees her resurfacing elsewhere, please do report back. I am not easily impressed but I do think she's one of the best WGs I have ever come across.