She's turning into a beautiful girl. Hard to tell on colour, since she looks different in every photo. She cannot be roan (a true roan) since neither of her parents is roan. If she eventually starts getting roany type flecks in her coat, it will probably be from a form of sabino or DW, which it looks like she has anyway.
That was a horrible injury. Looks like some of the injuries I see when people keep their horses within barbed wire and uncapped T posts. How on earth did this happen?
Re the sire. Some have thought he was a Clyde x Percheron, but if that were the case, the offspring wouldn't have nearly that much feather. If he is crossed with anything and looking at the amount of feather, it would likely be a Gypsy. Feather is recessive and once crossed, always loses quite a bit. Usually, it takes several generations to actually bring it back. Many Gypsies also have that colouring. In Gypsy talk, it's known as 'blue blagdon'. There again, Gypsies also come in grey, so if he is of that mix and lightens as he ages, he could even be grey. Hard to tell really, unless seeing the horse in person.