There is absolutely no way in hell Cyborg has been offered a title fight against the UFC's biggest star in a stadium that big without ever actually having made 135 pounds. That is not a risk the UFC would ever take. The rumors are complete nonsense at this point.
Ya, I think they are probably giving Cyborg a top contender at 135 in the UFC first. Probably Cat Zingano or somebody slightly lower level. Cyborg obviously doesn't want that. She wants to face Ronda immediately and not risk a loss to some other opponent first.