Inferno faction discussion.

I think incubi will be included. It's unlikely they'll bring back Magogs (50% new creatures, and "we won't go back to those awful units from the third game that don't fit anywhere!!!111" (but it's a shame).
And yes, I want imps.

Maybe. But I'm sure the succubus will be a mage.

Well, if we judge by the Dis, incubi are male, and I don't notice any among that pair. Well, the developers said something about 40% (although initially they said 50%). And it's not necessary to bring back units from 3 and 4. The action takes place in a different world now. And it seems that Ubisoft is creating its own bestiary. And I want imps to be able to shoot fireballs.
It probably will be, but the attack will probably remain at 5.