If you read the full Metrolinx statement, it appears that Metrolinx will be spending $$$ to improve and restore tracks on Richmond, Adelaide and York.
“As part of this partnership, we’re also going to be funding the construction of diversion tracks that will link up with existing streetcar tracks, ultimately providing the TTC with the ability to offer more reliable service to its customers for years to come.”
“Even after the Ontario Line is completed, if streetcars need to divert from this area for special events, planned construction work, or unplanned detours, this new infrastructure will make that possible,” MacKay added.
Streetcar tracks that connect Queen Street to Richmond Street already exist for westbound route diversions, but Metrolinx will fund the construction of new tracks that will link Queen Street to Adelaide Street via York Street for eastbound diversions, as well as any other upgrades that may be needed on existing tracks in the area."