In my first option, Nashik road or a station prior to it (i.e. towards Mumbai) shall become a new junction depending upon the results of survey.
In second option the rail line will be a new spur from mumbai area (existing spurs from Mumbai are ones going towards Nashik,Pune, Surat, Ratnagiri) with very short Mumbai-Indore distance. It will open alternative route(s) from Mumbai to Delhi, Central & North India. Other advantages are in addition to reduction in distance is increase in running/avg speed, drastic reduction in journey time, possibility of new suburban corridor for Mumbai along the line.There are some Material Modifications possible to the project which have potential to make a change in the travel patterns from Mumbai.