I agree with you, spmarshall. I think that Eglinton has potential. It will be a complete failure and spectacular waste of money if it doesn't have total transit priority, where the streetcar will never have to wait at a light. I'm sure it will still be considerably slower than the Bloor subway, though, keeping the latter the primary destination for most Mississauga trips, and making the explosion in ridership they project quite questionable. Still, if any route were suited to real LRT, it's Eglinton.
Even more questionable is the Jane line. I find it very hard to figure out where 24 million people are going to come from. Jane and Finch will be far better served by the subway extension, unless the extension is going to slowly fall by the wayside... The rest of Jane isn't particularly dense, and I can't imagine the median right-of-way being much quicker than parallel bus routes. I might add that I still can't imagine how they're going to squeeze it in to that narrow corridor. What's with the extension up to Steeles West? Finch West station might be useful, since it would capture the many riders from Jane and Finch to the subway. By Steeles West, who will be using it? Commuters from Jane and Finch to the Vaughan Corporate Centre?
The three extensions to Malvern (One more than even Socialwoe proposed!) have already been effectively dissected by others, but I might just add that the cost will likely come close to the cost of the entire York subway line, all for a few dozen thousand people in Malvern who will still have to change from the Morningside streetcar to the Sheppard Streetcar, and from the Sheppard Streetcar to the Scarborough RT just to get to Town Centre. Trips downtown will require the same number of connections, unless they take the streetcar all the way down to Kennedy Station. Mind you, there will be so pitifully few riders on Morningside that it will likely be a fairly fast trip.
The Waterfront West plan is a perfectly sensible project that has been discussed for a long time. It still won't be very effective, though, if they don't speed up the existing section of the route. If it takes longer to get from Exhibition Loop to Union than from Humber Loop to Exhibition, there's definitely something wrong. Streetcars move at a snail's pace through that Fleet/Bathurst/Lakeshore intersection.
The Finch LRT will likely be fairly well used, and is a good project. I still question whether it's worth close to a billion dollars to replace a relatively efficient bus route with light rail. Will the travel time savings really be that impressive? This route will make the York subway extension even more well-used. Finch West station may become one of the busiest on the entire subway network.
Don Mills is an interesting possibility. It has tremendous potential, especially if it's speedy enough to divert east-west bus passengers. Unfortunately, winding its way on city streets down to Pape Station will likely ensure that the Yonge line is far quicker. It will be nice to have higher order transit to places like Thorncliffe Park, Flemingdon Park, and Don Mills. Like Finch, though, I hope that the travel time savings are worth the hundreds of millions of dollars expended.