Late to the party, but a few things I've noticed so far:
First, like the Transit City map, what is the proposed stop spacing going to be like? Are these new and modified LRT lines going to have limited stops to ensure a compromise between speed and accessibility, or are they going to be only slightly wider than the local bus routes that currently serve these corridors? A similar problem arises with the Ellesmere BRT and Sheppard LRT, the former which is already a planned project for Durham Region.
Second, if the Sheppard subway runs across to the Spadina line, what is the point of having the Finch LRT run across this same stretch? And why does it have priority above the Don Mills LRT, which would be infinitely more useful? In the press conference which just aired, they mentioned that someone from Don Mills and Steeles could take an LRT to Eglinton, and then a subway downtown. As someone who used to live at this intersection, I could catch an express bus to Finch and take the subway downtown with a total transit time of about an hour. Could a couple of rapid transit routes along Don Mills encourage me to take this route instead?
Finally, and I'll admit it is a nitpick, if Etobicoke and Scarborough get an "express line," what does this mean for the north? Yes, the north does have subway lines, but the Scarborough Express looks to be almost entirely duplicated by subways as well. While it is great that the TTC is taking charge at moving people long distances within their own borders, seeing as GO is already focusing on converting some of their commuter lines into regional metros, it might be best to let them take hold on these projects.
Overall, this is a great plan. I'd think of it as a refocused Transit City, or a TC 2.0, rather than a whole new map.