Since it has been several pages, I want to reiterate: You should not stream this game on Twitch. It is directly against their Terms of Service, which can lead to punishments including bans. They have enforced this in other games before.
I know that several will continue to do it, and it's probably unlikely that anything will happen, however it is against their ToS and I want people to be aware. I assume NCSoft would need to get Twitch' attention in order to pursue, which isn't likely, but you might as well not take the risk.
This risk is completely mitigated if the possibility of HC getting the rights is actually somehow true.