Yay, now I can criticize the game more thoroughly. I played around with it for about an hour.

It looks just as awful as in the screenshots. Even worse. Everything feels small, crooked, bland, blurry, with an awful black outline, and an awful, clunky interface that looks even more like an iPad app than the interface of Heroes 6. Resources, mines, castles, and decorations all blend together into one mess; it's hard to tell one from another. And I thought the castles in Heroes 7 were bland and hard to see on the map. I missed a ton of resources just walking around the map and had to go back and collect them, sometimes even twice. I couldn't capture a mine; I just couldn't get to it. I only found the city list after searching for a while. After the turn is passed, the heroes happily forget where they were going. There's no "buy all units" button, which is a basic feature. The building screen is terrible, and the mage guild is terrible. It's boring and tedious to play. The skills have regressed to the level of the third game; the degradation is very noticeable, and the skill slots fill up very quickly. There are a couple of new ideas, even some that are relatively good, but I'm not sure how useful they are.
If I have another masochistic urge and want to play something weird next time, I'd rather watch Tin Titans Go, Sailor Moon Crystal, or Fullmetal Alchemist 2003; maybe even the sequels to Star Wars... okay, that's going too far. At least with those, I can draw something, do something really interesting and useful. But here...