-Melbourne Airport Rail Link (13~ km of new double track)
-Melton rail electrification project (24 km of electrification)
-Cranbourne duplication and Clyde extension (10 km duplication + 6 km double track)
-Baxter electrification (8 km of electrification)
-Caulfeild to Dandenong Quadruplication (20 km of double track/not electrified?)
-Werribee line extended to Wyndham Vale (11 km of double track)
-Upfield duplication and rail link to Craigeburn Line (5 km duplication + 2 km of double track + flyover)
Edit; Here are some more suggestions that some future projects that have potential
-Melbourne Metro tunnel 2
-Doncaster line
-Rowville line
-Altona duplication and flyover
-Hurstbridge/Lilydale/Belgrave line duplication
-Burnley to Camberwell Quadding
-Sunshine to Deerpark Quadding
**Please take it seriously