Interesting document. It's nice to have a bit more understanding of Metrolinx's planning approach and thoughts.
I like that Milton Line upgrade to 15 minute frequency is a priority, not that it gives me much faith there will be movement on it.
I find it curious that the only contemplated subway extension in the entire plan is Sheppard to Sheppard West. Interestingly, the Sheppard East extension to McCowan isn't even shown as a potential project, but shown in a grey line as 'part of existing, in delivery or advancing', which I take as even further confirmation that Sheppard East is happening. Stranger to me is that no extension of the OL is contemplated in the plan either on Don Mills or West from Exhibition. Is it just that ML doesn't want to step on provincial announcements? Or is subway planning purely political? Kind of odd to have a plan like this that doesn't contemplate future subway extensions that are at least plausible, such as OL North.