What happened to Rouge the bat
It got changed because of recent events with games being taken down due to copyright issues, and also because of a game got hit with a DMCA because it had contents from Minecraft in a porn game.
A game not many weeks ago (Lovely Craft Piston Trap) got hit with a DMCA because it had Minecraft related scenery and characters in a porn game, which Microsoft deemed it was damaging Minecraft, so the developer of that game had to stop developing it.
This is also why the Jenny character from the roadmap is not coming, because it would give attention to Microsoft, and for the reason of Rouge the Bat is because they likely dont want SEGA to issue a DMCA or lawsuit.