In the map above, 3 thick lines are existing or potential subways. 4 thinner lines are potential light rail routes:
Eglinton East, from the Kennedy Stn to U of T Scarborough, and possibly to Sheppard & Conlins if the MSF is still there.
St Clair East & Kingston, from the Warden Stn on Line 2
Danforth & Kingston, from the Victoria Park Stn on Line 2
Lawrence East, from the Ontario Line interchange to the Port Unon GO at the edge of the city.
It is unlikely that all 4 LRT lines above will get build. Even if it is just 2 or 3 of them, that would improve the cost/revenue ratio, compared to the standalone Eg East LRT. Because, a single MSF will serve multiple lines, and its cost will be shared.
If a very high density is planned for the Golden Mile, it is not unreasonable to expect something similar along Eglinton on the other side of Kennedy. Kingston Road and St. Clair East, too, why not?
While the northern destinations: Malvern Centre and the Zoo - can be handled by express buses. LRT-level demand is not very likely there.