Will there be more factions added or just more being added to the current 3?
Probably not. Certainly not at launch but there is a world where we add more factions post launch. I am leaning towards not doing that though and the game has been built from the ground up with 3 factions in mind. That said, we are always looking for community feedback, so if that is the direction the community wants, that is likely the direction we would take (I don't think that is what the community wants though from what I have seen so far).