Just a brief synapse firing cause me to wonder if The Mandalorian can be a factor in restoring IA.
While Legion has been FFG's focus, the format of the game does not really lend itself to Mercenary/Scum units because most of these characters are either loners or unaffiliated. Therefore, new characters from The Mandalorian will make more sense in IA than Legion. Not a sophisticated assumption, but here's hoping.