Once we get through to the other side of things, however we get there, I feel like there won't be as many permanent changes as some are fearing. I don't foresee movie theaters ripping out half their seating, or queues to put down labels for users to keep 6 feet apart for the rest of forever.
We may be, I don't know, 5+ years away from getting back to 100% normal, but other than everyone being a little more cognizant about washing your hands more frequently, and maybe engaging in less hand shakes, I'm not sure I see too many big changes to human activity, especially in the entertainment and leisure sectors.