And because it came up in that thread:
I have no effing clue what CCP was thinking with the 9th generation thing.
It's a pretty nice storyline and it puts the Minmatar under some pressure to explain their continued actions - but considering it had no effect whatsoever on the remaining PF and in-game actions, it just does not make any sense.
The numbers we have for the freed people ("several hundred million", "600 to 700 million") do not sound like it would be a majority of the slave population at all (earth has more people than that, and I doubt planets in EVE are all much less populated than earth). There has been no major impact on the Empire's economy, the Empire's backstory, or the Republic's politics. So I don't see how this could have been a majority of the slave population. Sadly, there has also been no explanation on how this came to pass.
Basically, it doesn't make sense, and whatever we claim ICly could be wrong - and it's something that our characters likely should be able to just look up, at least for a few rough estimated. :-(