Hey folks,
we plan to drop the "wb-status" page prop as it's unused as far as we can tell and of questionable value, see https://phabricator.wikimedia.org/T146792 https://phabricator.wikimedia.org/T146792. This will affect you if you use the action=query API to retrieve page props from entity pages or if you use the page_props table (on tool labs for example), to retrieve this page property.
Please let us know if and how you use this page prop, so that we can find a solution for your use cases.
In case there are no issues with removing this, we will drop it in December 2016 (or later).
Cheers, Marius