Completely disappeared without a trace. And deserters, who should have been brought back from previous installments of Heroes.

Conflux simply doesn't fit, at least because the elementals and phoenixes that lived there weren't intelligent, and the elves took the fairies... Now it's not so easy to bring them back – everything needs to be created from scratch – how they appeared, how they became intelligent – in general, Nival needs to come up with a whole story for the creation of elementals, and that's quite difficult, and so far, no one is particularly complaining about their absence...
Yes, and you also need the consent of those damn Ubisoft guys and a new suitcase full of money...