Hallowed Mountains?

Hi all! If it says this anywhere, please feel free to let me know. I love this game but don't keep as up to date on stuff, so I was wondering, has there ever been any mention on expanding the snowy region? I really love the entire map, and think it's really cool that they gave us Oakveil, but I did notice that the Hallowed Mountains felt the most unfinished. It's a shame too because I really love the ambiance there and would love a few more castle plots too.