Although i agree that the coronaviruses will settle in time but vaccines aren't a necessary for it. Spare a thought for natural infection and vaccines if at all needed, need to be focused as given in the below article:

https://sogmoe.medium.com/waves-after-waves-three-factors-which-will-largely-decide-the-course-of-the-pandemic-and-why-e11b223ab6c1?sk=b4495f675a6adf387455297bc03eeace

Self protection is the best protection.