The futuristic Robotics is in its fast paste evolution, parallel with the AI, Bio Informatics and Mecatronics. getting closer to Human like Machine with its capabilities to reason and emotional expressions.
"Human like behavior", yes very much possible. but reasoning based on emotional content will be pretty much difficult. In humans Emotions are deep rooted and are formed/influenced by strong /intense events, sometimes even genetics. In AI, emotions can only be simulated. Emotions would be set of variables influencing the NN to bias certain decisions. Its upto the designer to design it. Outcome of such systems could be very unpredictable.
I am not sure what you mean by assimilating here, but my approach is based on machines observing human emotions to decide which choice is more preferable for humans. As somebody mentioned, simulating emotions in a machine is risky. If you think about android partners with headaches and changing moods and decisions according to weather, then you might need it...