We are slowly getting to a situation similar to that of influenza. Only the weakest will have to be vaccinated on a yearly basis, and most will just live and could get somewhat sick in a minor way. The main problem is that we may end up to that situation soon, or possibly later and this strongly depends on what the next variant will be. The good answer is therefore probably that "we don't know".
My opinion is that currently, restrictions are probably not that needed anymore provided we pay a little bit of attention to how we behave. And this is the mere problem... most don't care...