This has been much discussed, including officially. Samsung is getting out of the business of designing and supporting home automation devices, including hubs, And turning that over to partner companies. They will still create the app and the cloud.
So far the only partner announced is Aeotec. They have a re-branded version of the V3 hub taking pre-orders in Germany and the UK for delivery in a few weeks, but no timeline on the US yet.
See any of the many existing threads on the topic, including the official announcement. (Not sure why you missed that one, but it’s there.)
An Update Regarding our Hardware
Or this community discussion: