Nasik City alone is capable to provide more than sufficiant passenger to all Important train. Apart from Big City, Nasik has its pilgrimage Importance also. One of Jyotirling Triambakeswar is at Nasik. And Shirdi to Nasik is 87 k.m compare to Manmad to Shridi which is 58. Which is not big difference. Yes AWB people can be missed.
Trust me , even if CR start Rajdhani, it s halt will be at Nasik. At MMR chances are less.