In most of urban Canada, malls tend to be going in one of two directions - either to expand significantly and upgrade to a more high-end experience with luxury goods and whatnot, or to stagnate and decay with eventual replacement by new development. The latter category tends to happen to what were originally more "local" malls as opposed to regional centres, though some have managed to make the transition to the larger category. Usually the replacement of dying malls is a mix of residential and big box power centre type development.
The development of power centres continues unabated and they are as crappy as ever, even as land use planning regulations sometimes make them pay lip service to pedestrian friendly aspects such as smaller setbacks (even though the stores face inwards!). Sometimes this includes a master plan for eventual redevelopment as these structures are largely seen as temporary and are essentially just light steel warehouses on a concrete pad.
The traditional strip mall is an interesting thing in Toronto as these have become some of the last vestiges of cheap, small retail space as older retail strips are almost fully gentrified. Throughout mid-century areas of the GTA you see a lot of interesting independent businesses in these plazas including a host of small (usually ethnic) restaurants. One thing I've noticed with strip malls in Toronto built in the 50s to 70s is that they often have apartments above the retail space - sometimes now converted to offices or the ubiquitous "massage parlours".
Stuff like this:
https://goo.gl/maps/jm42EvYcuMCpxMC98
https://goo.gl/maps/1EmQf1aUj9REpyLKA
https://goo.gl/maps/haE4rc3MhuRncjtt7
It's far from perfect urbanism but they are functional and nowhere near as much a blight as power centres. Sometimes the front parking can be turned into patios and such too, something accelerated by COVID:
https://goo.gl/maps/2Pb172GaMTGNcXnx7
These types of strip malls are being targeted heavily for redevelopment as it's much easier to consolidate land than residential frontage. While replacements will include just as much (if not more) retail space, it's ultimately much more expensive and rarely will the variety of businesses be replicated.