How do you know that the corona virus will not mutate? So far it's still not clear if corona will come back in the next years in a slighty different form. ...
Reword this to correct it.
Of course COVID-19 will mutate. It already has. Of course it will be around, basically forever.
you are right, it will last forever but hopefully our scientist will find all the vaccine necessary to continue for us to live a normal life.
That magic ain't gonna happen. What will happen is the flu shots will get some covid-19 antigens, making it a somewhat better flu shot. That will help a little bit.