Alright let's do it then, here's what I get from the quote:
"The Vlandians control slightly more territory than the other factions, but we've seeded the ground for a lot of internal dissent among them. The world-weary Vlandian king, Derthert, will have to deal with barons who are more interested in pursuing their own agendas than fighting under his banner."
The Vlandian's territory is bigger than that of other factions
There will be clans inside the faction
The clans will not always follow their king
Where in this, is stated that we'll be able to create our own clan ?