I’d definitely like to see some elevated POPS in Toronto, as seen in cities like London and San Francisco. However, they are relatively expensive to maintain and operate, so unless they’re dedicated observation decks that are admission-based, I think it’s less likely in solely-residential buildings.
I’m not even sure we’ll see a dedicated observation deck in a building of any sort until something is proposed that is significantly taller than the CN Tower’s main viewing deck, 350m+. And if we do, it would probably be in a mixed-use/office building in the form of a purpose-built restaurant, similar to Canoe, to be financially feasible.