"Fawkner" may not actually be Fawkner anyway - it may be more like Gowrie. Regarding development potential, Fawkner obviously won't realistically change much given the location of the cemetery. Gowrie is currently a light industrial nothingsville, but given another 30 years, the urban redevelopment happening in places like Preston/Coburg/Reservoir could be happening there also.Fawkner and Gowrie are ridiculous for SRL, Campbellfield would be much better and it can connect to the existing Upfield Line with a future planned at Camp Rd.
Reservoir again is ridiculous, Epping or Thomastown would be better because they have bigger population and it is a large employment area. You can cover the Preston/Reservior with a Station at Northland S.C in West Preston area
Of course there is little room left, it's being taken up by all those buses. Eleven - 11- different routes visit here making the station one of the busiest hub in Melbourne. The station may be the end of the line, but it already is a huge capture point from GW out to the hills in all directions. SRL will make it an even more attractive destination.
Agree with Glen Waverley area is becoming a huge hub for transport and SRL will further enhance that. With tunnelling how the hell do you do the Sandringham Connection from Southland (via Beaumaris perhaps, large population). Would be challenging engineering but nothing too mind blowing