Even if there will be a be vaccine, it's highly doubtful that it might be really helpful. Also, herd immunity, something I've read several times when people expressed their future hopes, is unlikely. This in combination with the lingering effects of the virus, even at people with initially hardly any kind of symptoms at all, makes the potential market for Leronlimab (unfortunately) wider than anyone is expecting.

https://www.washingtontimes.com/news/2020/jul...g-effects/

https://au.news.yahoo.com/antibody-study-dims...--spt.html