The Star Fleet / X Bomber standard definition blu-ray was released by Diskotek on March 26th, 2019 in the US.
More info on the SFXB forum: New US Release w/ Japanese version
I originally found some good photos of it on twitter, thanks to piedpiperagogo.
Both UK and Japanese versions of the show are present on the disc.
Not only is the Japanese version of the series nicely subtitled; (including a 25th episode that was never adapted for a western audience), but so too is the 'preview show' short pilot episode.
When I received the disc (2019.10.20), I screengrabbed the menu screens and ran automatic screenshots on the Star Fleet and X Bomber series.