The trees are probably fine (for now)..........difficult for me to be sure, but they look like American Sycamore to me; which is the native version of London Plane Tree.
They have bark that peels and looks splotchy.
The City seems to be trying them in multiple places as a street tree this year.
They planted some on Wellington beside 'The Well'.
I talk to some people in the forestry industry about it, because I've never seen them used as street trees before.
The reactions I got were generally on the confused/dubious side, with people questioning whether they will do well.
Having looked into it, they are used extensively as a street tree in Washington DC.
I imagine one concern here is that Toronto is the very northern extent of their range.
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Its also listed as 'sensitive' to salt spray. Which would seem to make it very odd choice for a very wide, and high speed Eglinton.