Unfortunately, I think not. At the PCAs they confirmed they had broken up. I know they like to keep their relationship private, but if they had got back together au thought there was a chance they would, it's doubtful they would have mentioned it. Plus, if they were back together, they would be spending zaidi time together, and there would inevitably be pics of the two of them out and about. au people would have seen them together and tweeted about it. I understand why mashabiki want to believe Nian have rekindled their romance; it was very sad when they mgawanyiko, baidisha up and I thought they seemed really great together, but unfortunately there's just no evidence to suggest they are anything but Marafiki at this moment in time.
