I hate to be a pessimist, but I'm beginning to think that most of our retail areas will look like ghost towns by the time the pandemic is over.
That's what I am concerned about, as well. I suspect non-essential retail will take some time to recover to pre-pandemic levels, if online shopping does not supplant it. Some people do enjoy in-store experiences, and once social distancing measures can be safely lifted, I do think some people will return. For things like fashion retailers, the quality of the in-store experience will be key (not to mention the quality of the product), but I don't think that will be enough.
Shopping malls, in particular, will need to diversify their offerings beyond their heavy focus on fashion retail and entertainment if they hope to survive. Unlike US shopping malls, British and Australian shopping malls often include some degree of "essential" retail inside; for instance, it is not out of the question to see a supermarket as an anchor store, which is something practically unheard of in the US with respect to traditional indoor malls. Turning malls into "one-stop shops" could be useful in the future, but online shopping will always offer a far larger selection than in-person shopping ever can (Amazon first rendered the bookstore obsolete, now they are seemingly doing the same to other types of retailers). Some people are impatient, and want to buy something sooner than shipping can deliver; the "I want it now" consumer could be the shopping mall's best friend in an era of online shopping. Malls should also consider adding more innovative entertainment offerings (thinking outside the movie theater/arcade/etc. box), not to mention what I have said about focusing on a positive in-store experience.