1) I'd also like to see some updates on the forgotten Caulfield to Rowville tram line project. That particular project has went silent for years, reasons being SRL has delayed it. Since SRL has picked up speed and has had planning done on the location of the stations and route alignment, would be nice to have a follow up on the Rowville light rail project since it's delivery can be done quicker and would benefit Chadstone and Monash locations in the short-medium term.
2) Melbourne Metro 2 could be the next major rail tunnel once MM1 is completed in 2024/2025, would be nice to see some early planning work and development post 2022, to see whether this project stacks up or we should go with reconfiguring the city loop tunnels instead. The city loop reconfiguration would mean more paths using the city loop tunnels and increase the capacity quite a bit, without injecting 20 billion on MM2. As I said this would be a good way to make use of the existing capacity in the city loop and then you can put MM2 to a later date. The MM2 would go together well with both the WRP and the GFR projects which are happening in the medium to long term but a business case should look into if its investment is worth the benefits since it has a large price to building it.
3) With buses, I agree with what has been said previously about bus service improvements, also they should build on the smartbus network more. Add additional smartbus corridors and tweak the existing network by splitting up the long orbital routes. There should be an overall project team to deliver tram and bus projects (Tram and Bus project Victoria), like there is for rail (Rails project Victoria) and roads (Major roads project Victoria). More tram and bus infrastructure would obviously attract attention to the government and in turn would increase patronage on those networks and would push further service improvements.
4) Another beneficial project that some have missed, is introducing high capacity signalling and the HCMTs on further rail corridors in the future. At the moment its expansion is towards the MARL project. But there is opportunity it could be introduced with the WRP and other existing rail corridors.
5) As for regional rail upgrades, probably would be improving the Bendigo line with redoubling some of the track lost from RFR. No need for trains to Drysdale, or past Clyde or Mornington region. You need to get the existing regional network operating with better frequencies and improvement to the tracks, signalling etc like what's been happening with RRR. The only real possible regional extension in the far future is Maryborough to Mildura, but that's still unlikely due to the delays on the MBRP which has halted the Ballarat improvement project that could have extended Maryborough services to Dunolly. But with that disaster of the project it is unlikely Mildura passenger rail will happen at all.