A super bug could arise anywhere at any time. Even if we reach heard immunity and beyond, it could still arise in any of those few who could not get vaccinated or whose vaccination failed at the critical moment.
That's no ground to keep the current restrictions forever.
At one point C19 will be just one more common illnesses that kills a couple 100 to low thousand people each year. Mostly unvaccinated but also quite a few vaccinated as well.
People want to visit sport events, concerts, clubs, carnivals, etc. And not at only 25% capacity while having to stay 1.5m apart and wearing masks.
The % of supporters is falling steadily in Germany. If the government had allowed the arenas to be filled to full capacity for the european championship, it would have sold out no problem.
Pressure is rising and politicans are giving in all iver the country.
Even brothels are already allowed to re-open since July (yeah, I am sure the contact tracing there will go really well), and that's really a move I find too much too soon. Although to be fair it was also seen as legally difficult to deny their reopening unless a lot other stuff would have to keep closed too (fair treatment and stuff)