I think the problem with gallia is not its size but its location in Sirius. Tucked away in a crappy Northwest Corner of Sirius hidden behind the Taus and Outcast Space dont much help as these are remote areas of Sirius anyway and putting a House behind them makes Gallia even more remote and lonely which is sad. What the mods should do is put it right at the centre of the Discovery Mod not just inRP but in location too..
My Proposition Move the Gallic Systems from the North West Corner of Sirius and reposition them in the space between the North of Liberty and the South of Kusari which will thus put it right in the heart of Sirius meaning more players will pass thru it.
The rest speaks for itself really activity breeds activity and Gallia will grow from there. This for me has been the only problem will gallia is its remoteness. Putting it into the centre of sirius with more jump holes connecting Gallia with the rest of sirius will really open things up......