I think that's the castle from YOUNG FRANKENSTEIN, actually (a Fox film). But I could see them going with something vaguely along those lines, because there's no definitive, singular Castle Frankenstein in the old movies. Probably best to design a fresh one, borrowing classic elements from various "old horror movie" castles. The windmill is far more iconic a location from FRANKENSTEIN and BRIDE OF FRANKENSTEIN, and it looks like we're getting that.
If it was going to be Castle Dracula, however, I think they'd be attempting to do a version of what was seen in the Bela Lugosi DRACULA.