That drastic change is already happening right in front of us.
Last 30 years:
- Downsview -- 1996.
- Sheppard -- 4 new stops in 2002.
- York University GO -- 2002.
- TYSSE -- 5 new stops in 2017.
- UPX -- 2 new stops in 2015. (The airport is technically not in Toronto)
- Renforth Mississauga BRT station -- 2017. (Man, I'm being really generous here)
Next 15 years:
- Crosstown LRT -- 23 new stops in 2022.
- Finch West LRT -- 17 new stops in 2023.
- Caledonia GO -- a brand new station on Eglinton, 2023.
- Ontario Line -- 10 new stops around 2030.
- Crosstown West -- 6 new stops around 2031.
- Scarborough Extension -- 1 new stop (Sheppard/McCowan) presumably around 2028.... I only say one because the only "extension" is the part north of the STC. The rest replaces the Scarborough RT...
- Yonge Subway Extension -- 1 new stop (Steeles) presumably around 2029.
Plus there's the big new bus terminal coming together at Kipling, and the near-total rebuild of Agincourt GO that is almost finished.
Put all of those pieces together and most of Transit City will actually be done. The main missing items are the Sheppard subway extension (which everyone seems committed to doing, just not before the mid-2030s) and a north/south LRT corridor on Jane.
The total: ~15 rapid transit stops built since 1990, ~40 are being delivered in the next few years, and ~20 more planned after that.