As Kishan pointed out, he used to pronounce economically liberal views earlier on, but I'm not sure about his foreign policy views. Otherwise this is pretty much unchartered territory, as Sanjay was mostly busy with his pet projects (i.e. the sterilisation program and slum clearance) during Emergency. One cannot be sure how his influence would have defined Indira's second administration, but during the 1980 elections he was one of those Congress politicians who made sure that the right (loyal) candidates appear in the respective constituencies. Congress would probably have been dominated by his crony system, if he'd lived longer. I don't know if he had fully defined positions on foreign policy.