Good news. The new data provider I’m migrating to tracks a bunch of external links to games from GOG, Origin, MS, PSN, Steam, etc. that I will be able to use to enable this feature.
Because status “lists” are treated specially (in the code and UI), this would be a major change. In the meantime, we have added many new statuses since this idea was submitted. We will still see if it will be possible to allow users to mark lists as “status” lists.