Actually Whiterose was a huge favorite of Monty's, and since Kerry is devoted to carrying on with what Monty wanted, there's a bigger chance of Whiterose being canon than BB. Believe it or not, I actually think Whiterose will end up being canon. Monty said he wanted it to happen, but it had to be organic and slow and not forced (like Neptune and Weiss cough cough.) So if anything it would happen in the later seasons. Almost like with what happened in Legend of Korra.