What would you change in Heroes of Might and Magic IV?

fourth, there are too few races! We need more... by the way, will there be WoG for Heroes 4?

But where can we add more? Everything is fine as it is. There's a team called Equilibrium, and they made a sequel to Heroes 4 based on the movie Excalibur and something about Alexander the Great, and they also made some minor adjustments to the creatures and spells in Heroes 4.
P.S. Dear STRANNiK, please don't delete this, as I needed to tell this to the person. Thank you in advance.