The initial selection of factions will rise to a maximum of twenty as players provide assistance to minor local forces; as those forces establish a foothold across a handful of systems, they may rise to become Powers in their own right."
http://www.frontier.co.uk/news/latest/?artid=494&blk=12
Player groups can rise to a power.
So imagine the Mobius group, with it's many members, all deciding to help a small minor independent faction. Then that faction starts to expand (with our help) and becomes a power.
As i understand it, solo and group play both effect the galaxy just the same as open. So we could help build our own power, not by PvP, but my helping supply the missions needed.
Would there be any takers do you think.