We should have just dug a proper 28 km subway entirely below grade from Renforth to Kennedy and using new buys of the same Toronto Rockets we use on the Sheppard and Yonge–University Lines, or whatever trains will be bought for the 26 km Bloor-Danforth line.
If we had started a boring machine at Renforth in 2011 and stayed below ground the entire distance, minus bridge underpasses, how long would it need to get to Kennedy? I believe such machines run at about 10-15 meters per day. It's 28,000 meters as the crow flies from Renforth to Kennedy, so that's 2,800 days, or about eight years, assuming we don't run a second machine from Kennedy going westward.