It would seem at the moment they've thrown it to the back burner, busy with fire extinguishers putting out current fires with the latest updates. In it's current state it's never going to work waiting on 20 people to populate servers, people that want to play solo or with a handful of friends don't work with the current system. The search experience is a mess with a lot of dead experience caused by all the patches to Portal which makes it frustrating to find a experience that works, so the 'Search Experiences' needs a overhaul in filtering, put dates on experiences so we know when they where posted up, allow us to save experiences to favorites, allow us to save creators, etc..