I wouldn’t expect, that the Magnetar will become Roon ready.
It’s at first an UHD disc player, with some troubles in the firmware and not a real streamer.
I know, that a lot of people are using their blu-ray players as streamers (I’ve also two oppos and two cambridge audio players), but for video or audio streaming I’m preferring in every case dedicated streamers (dune, zidoo,…)…
After the Zappiti debacle I would be reluctant to put all my eggs in the same basket with a streamer only eco system . The UDP900 has an Ethernet-only setup which , in my case, has performed admirably when playing Dvd/BD/UHD isos from Dune or Zappiti and plays music files from storage easily too.