What we can see on the photos with R-77M is that new catapult launcher called 'AKU-ASP ' or aviatsionoye katapultnoye ustroystvo-aviatsionoye sredstvo porazheniya. I suppose we can also see radio-proximity fuse transmit /receive antennas. There is that new active-passive radar seeker ,maybe working in the milimetric Ka-band just like one in the Japanese AAM-4B? Maybe ...