We heard back from the team and, currently, they do not have any information nor have been made aware of an acquisition or conversion of the Citizen hotel. We requested that the team keep us posted on this, and will inform you as well as the rest of the community if we hear something different, or are provided an update!
the citizen is now a marriott property, part of the autograph collection. last week, i made a reservation at the citizen for a stay later this month on the joie de vivre website. today, they are no longer listed as a hotel on joie de vivre. i called to confirm my reservation and they confirmed they were now a marriott property.
Good looking out! Thanks for bringing this to our attention, travelfarandwide!