We have the these "factions"
Nagash is still there
The steamhead duardin are a grim folk, yet sturdy allies. The red slayers, are looked upon less, for their help can only be secured by gold.
The aelf forces are more wayward still - they prove deadly when they march out of their hidden strongpoints, yet none can predict when ...
Most enigmatic of all are the seraphon - reptilian warriors that appear out of nowhere to join the battle against Chaos.