^ It is notable that DRT wants to use the Sheppard / McCowan terminal, rather than STC terminal. If their buses serve UofT Scarborough and then use the Ellesmere bus lanes, then the STC terminal is the closest one.
Does that mean they expect the Sheppard line extension to Sheppard / McCowan, and want to go there so that their riders can continue west using the Sheppard line?
It is worth noting that the first major street west of Durham Region is Sheppard. They may be diverting away from U of T and sending all buses up Sheppard instead.
Why they would do that is beyond me but it makes sense.