I was going through the rulebook fluff last night and it clearly stated that Lizardmen were already in action attempting to place the races back from where they should be. Castles are wrecked by earthquakes and cliffs arise behind entire armies cutting off their escape. My question is how do you think the Lizardmen would fair and where have they started their action? I would assume they're moving north into Naggoroth first and spreading jungle and taking out the cities to the south. I can certainly see the Lizardmen have it in their power to make considerable ground in the Land of Chill but I'd imagine they would never truly be able to claim all the land simply cause I feel the lack the numbers to spread and still protect their sacred sites. I can also see them completely wiping out all the settlements on the coast first and ridding the south of the Orcs that reside there prior to the march north.
I was reading the rulebook the other day and it hinted that the earthquakes which crippled the dwarves was also the slann.