I think Cyborg walks through the entire UFC female roster. Ronda looks so uncomfortable in the striking department, and I really think Cyborg could keep her away. Even if she doesn't manage to do that, I think her strength is enough to keep the fight standing, assuming the weight cut doesn't gas her.
Now, she has also been busted for roids so maybe if she is getting tested extensively and is off the juice she will struggle to keep that intensity, who knows.
I suppose there is also the possibility that the UFC has come to terms with Holly Holm, but I don't think that is enough to warrant the crazy hype Rogan is throwing behind this. I also think she should get a couple warm up fights in the UFC to make sure she is comfortable in the octagon.