There’s still the question if the source code for Shenmue on the saturn still exisits. Because Sega no longer has it for Panzer Dragoon RPG, which is why it hasn’t been re-released.
As for the train scene, I hope it’s reworked in a different part of the game at some poibt
From what we've seen with SEGA, they can be a pretty careless and incompetent with just about anything, this is especially true with Shenmue. I believe that Shenmue.com was even owned and run by fans for a long time, which caused a bit of a controversy on here when the Munecas section was updated to coming soon or something...does anyone remember this? It turned out a fan, who I also believe posted here, bought the domain name right from SEGA who just let it slip away. Most companies in media are very strict in archiving their IP, I know Nintendo probably has things all the way back to the NES or before archived, and stored properly, locked away in vaults. But SEGA seems pretty careless, and the Saturn was such a blink of an eye anyway and such a forgotten and weird system, so it wouldn't surprise me if they let that stuff vanish into thin air 15 years ago.