I agree that an LRT on Kipling could be a great route , very busy & lot of apartments @ the north end.Kipling has express buses, both north and south of the subway. And with 10 minute headways.
Kipling would be my choice for the next LRT in Etobicoke... after Eglinton and Finch West.
But you would need to run it over a the 407 (expensive long bridge span) to hwy 7 some way. This would make it a more complete route to Woodbridge.
Other wise ending it @ Steeles ave. would be incomplete ( not much there).
Also the city just repaved Kipling all the way down from the 401. Good timing to rip it up again!