As per hadith and predictions by Naimtullah Shah Wali (NSW), it will happen but some people do not believe about the authenticity of hadith and many don't have any knowledge (well they don't any knowledge about religion at all). However, if we see current geopolitical realities, we cannot rule out the possibility of a large scale war between India and Pakistan. The former never accepted the existence of Pakistan and still dreams of united India under Hindu rule and other than this main source of instability there are core issues like Kashmir, water and other borders. The situation gets exacerbated with India's open involvement in terrorist activities in Pakistan. After 69 yrs of independence the extremism, racism and intolerance have only risen in India and currently the most bigoted and terrorist group is in power and total control of the Indian administration. Thus the possibility of a large scale war between the two countries becomes much of a reality and it would only be foolish ignore it and with the introduction of nuclear dimension in the subcontinent, it will be an extremely devastating war and the scenario matches perfectly with predictions in the Hadith and by NSW.
Now as far as the map is concerned, it is just a guess at best but believe it would be complete take over. That was just my analysis while Allah and his Prophet know better