All right, many things to say :
-Elementalists are battle mages, they don't learn healing powers and I like the fact that if one of the heroes doesn't have much life you need to protect him, not just use more mana on healing him (but don't worry, healing powers will come.)
-Old maps will not be terrain-uppgrade for a stupid reason : I like to keep maps like I orginaly created them, I'm a bit sentimental you could say. But the new maps will of course take account of your advices.
-Yes, I'm going to finish this campaign and I've got every map in my head until the end.
-New heroes will have unique abilities. Kröchar might get an improvement but Scytale will stay a Drunken Blademaster like he is.
-I think I fixed the big bug of Chapter 2 bis, I didn't saw it like you because I usually don't skipp cinematic often.
-I found something great called the "Icons" section of this site. I went a little crazy with it and put custom icons whenever I could. I will make a list of credit for their creators but for now just know that I didn't make any of them and that you can find them in the Icons section.