"3D HoMM is, well... not HoMM."
How come? If the turn-based gameply survives; I don't see any problem with modernizing the series. Especially with Nival on the reins. Now that is a good developer. Rage of Mages, Silent Storm, Nightwatch, Blitzkrieg; fantsy games, strategy, turnbased games. They have the means, now we just have to see if they can deliver.