i was looking at the extra classes down the side of that page and translating them, the unknown ones. it seems the extra war class translates as "gun/rifle user". cool.
there are 3 extra crafters, which are, in order; "carving/engraving", "armourer", and "woodworking/carpenter". these all seem self explanitary (if we can trust them, i have no idea)
the extra mage translates as "巴(tomoe) user" or "tomoe mage", tomoe is just a weird symbol but sometimes in anime they float around peoples heads, so i have no idea what the actual thing will do... tomoe at wikipedia
i dont even know if we can trust this info, but thats what it says on the site...
and good find ;)