It and most of the Thunderbolt HGs have been very hard to come by in recent years, but a few years ago the Psycho Zaku, FA, and Atlas Gundams started to get reprints roughly every year, so there's a growing chance. Plus, with the manga recently ending and Hathaway 2 wrapped and ready to release (presumably with the finale in production) we could see a season 3 of the OVA in the next few years (the animation team wanted to wait until the end of the run to adapt it and those animators have since been working on the Hathaway trilogy). I also imagine they'd reprint some of the HGs in celebration of the manga, maybe even putting out a P-Bandai Trust Squad set or HG Psycho MkII if we're really lucky

Up to Bandai they just reprinted a few Thunderbolt kits, but this one has been out for a while, so was Zaku big gun and that just got reprinted, so fingers crossed.