I just want to put this to the group, so hear me out.
If you do manage to band together and start claiming provinces, it's going to be a long time till you really properly win, so my suggestion is, if I can engineer a suitably dramatic ending in the next few turns, that will allow all of you survivors to carry your nations across to any possible sequels, and perhaps even have some kind of advantage in future games, how would you feel about it?