Make it a hybrid . . .
For the Nova Cat bloodnames among the Spirit Cats that are extinct- and there has to be some- they now become Honornames (Or ProtectorNames?). When originally set up, any freeborn could qualify based on their deeds and service to the Clan- lets say Joe Schmuck managed to singlehandedly knock out a Crusader Wolf star colonel in a recent Trial, gaining the Loremaster's (do they even have this position? or any of the traditional ones? or perhaps it would be Oathmaster, which seems to be Julietta . . . ) notice who will be charged for starting the initial rounds of Honorname Trials. Joe competes against 7 other freeborns in the abbreviated Trial for the Carns Honorname. Joe wins the whole Trial, becomes Joe Schmuck Carns though to the trueborns he is just Joe Carns. For the Carns Honor/ProtectorName, Joe's genes are taken into their breeding program. Scientists will be able to breed sibkos of his genes and any other Carns H/PNamed warrior or bargain for crossing outside the H/PHouse.
It offers a lot of potential to include the population of Marik in particular and even the other worlds of the Protectorate. And is a unique twist for the Spirit Cats.
One other question is . . . how much would Fox & Cat genes mix?
Also, I am not sure the Cats would need a version of the Tiburon- they have the Havoc after all, just upgrade it.