Well, they could always do the same thing I did in my AU - one Clan spawns four others, then twenty years later, each spawns four again - of course, the Adders forcibly Absorb the others (except maybe the Lions) and remain IlClan.
Its questionable, but I could see Ben Rome doing it to reintroduce a whole new bunch of deep-space nutballs eager to attack the IS, with the kind of pragmatism and ruthlessness that might actually give them a chance of winning.
Of course, I came up with the idea first! NYAH NYAH! ;D