Heroes of Might & Magic III: Horn of the Abyss

Associate Professor, I don't know if this has been asked here before (if it has, I apologize): will the old units remain unchanged (in terms of characteristics)? Or will there be balancing?

We will only be balancing the Conflux (unless you consider the fact that the Hobbits will move to the Tower as an alternative).

And approximately how much will the add-on weigh?

The first version will be approximately 150-200 MB. There will also be a complete version - together with the base game (SoD) - it will be approximately the size of a CD.