Well, we might learn more about the contract and the whereabouts/stats of those Nodoses - who, according to the OP, might look very different from each other (who knows? They might even have been reshaped to the likenesses of mythical beasts/creatures like cyclopses, harpies or minotaurs) - since this evening's (I'm GMT+1 and the show airs at 06:00 PM for me) episode is named,
according to ANN, 'Eiyuu no Shuzoku' ("Hero's Race").
It might, of course, be a flashback ep where the history of the Nodoses and their downfall is explored...although I hope for plot progression.