I believe people would go back to the times, when Gallia was just 5 systems. I like the design, house, the idea, but there's nothing what could interest Sirius players.
However, there's something telling me that Gallia is kinda right here, because they want to subdue whole sector (voloutarly or not) and unite it against many threats, like Nomads or SCRA (which is slowly rising into power). I would laugh if it came out that King Charles is infected by Nomads.