With the opening of Line 5 Eglinton, service on the 51 Leslie will be adjusted, replacing service previously provided by the 56 Leaside.
51A Leslie service will operate between Donlands Station and Leslie Station.
51B Leslie service will operate between Donlands Station and Don Mills, replacing service previously provided by the 162 Lawrence-Donway on The Donway.
Service on the 151 Leslie North will also begin, replacing service previously provided by the 51 Leslie between Leslie Station and Steeles Avenue East