So as for characters did you have some rules particular in mind (aside from the buildingblocks/lore of the world) do our characters need to have something or are there things that you don't want characters to have? 
Or is it anything goes, provided you stick to the lines/rules of the world.
Did you intend different positions/jobs for our group or can we choose ourselves? And have we been approached already to join or did you plan to weave this in aswell through roleplay?