An interesting idea that appeals to my need for symmetry: perhaps Kisho et al end up becoming a parallel faction to the Scorpions, just on the other side of the Sphere, out past the Snow Ravens? They occupy a similar niche as the Scorpions do, also: pariahs from their main group that have been abjured, but are still distinctly Clan in culture and outlook.
Just a brain fart from my addled mind, but something to dream about.
Not sure that this needs Spoilers, but I think you are right that the most likely scenario is that
Kisho's Nova Cats are somewhere out in the Periphery, likely either past the Raven Alliance or The Barrens. That said, I'm not as sure that the Nova Cats would set up something like Clan Goliath Scorpion and the Scorpion Empire.Part of my rationale is that Clan Nova Cat has always been guided as a Clan by two things: 1) Visions - and this includes Kisho's, and 2) devotion to the Star League. It seems like any version of the Nova Cats is going to be driven by the Clan's visions for itself and *probably* (although not necessarily) as members of the Star League.
(I think Paladin Drummond is another example of a Cat still defending what she perceived as the Star League and the remaining Nova Cats who were part of the Republic).
Although that does raise the question in my mind of what would Clan Nova Cat look like if it cast off its duty to the Star League? Would we still be Clan Nova Cat then? And if so, what would be the new vision for the Cats? The Spirit Cats? Something else?
If anything, I think the closest analog to Kisho's Cats is the Fidelis or the Minnesota Tribe/Clan Wolverine.