How about Kusari taking up the war on drugs aka Outcasts now they are bored?
Reasons:
-Gallia will be happy with Kusari, as Outcasts annoy them
-Hogosha could protect its market and people
-Slavery is propably even in the future one of the worst crimes aviable
-Cardamine is the biggest danger the haouses have to face other than gallia (it is worse than any known drug- actually if Casts would play it smart they could puppeteer large parts of sirius!!)
-It would give the new regime good publicity- a war they think is easiely won against a non Kusari force, why not?
-Only Bood Dragons and Chrysantemums won't like it but hey...those are no friends of the lawfuls anyways!
=>Get some Kusary Navy scouting parties together, find the oh so well secretly hidden outcasts and put the smack down with the bored fleet!