I hope this prediction of mine turn out to be wrong. But I am feeling more and more towards it. First it was told it is colonel's wish to die on Everest. Now in yesterday epi he is badly wounded, but he is hiding his status from his team. Team has lost half their oxygen supply and have to manage the rest of the journey with the remaining supply.
Chand feels it is a risk, but colonel tells they can manage. Colonel sees his wife now and then. Well all this is kinda pointing towards some kind of disaster for me.
Maybe to save someone else Anjali or Arjun colonel might end up giving his life as the last oxygen cylinder will not be enough sustain all of them and one has to give away. I feel colonel will do it and maybe it will be then Arjun's real transformation will start.