What are you talking about? Everyone wears a mask in Germany in closed spaces and public transport. I haven't seen a single person not do it and it's already part of daily life. I don't understand the point here?
I don't think this will happen, I also HOPE it won't happen too soon, in Bayern we still have restrictions on number of people that are allowed to meet. Austria got rid of masks almost everywhere, but you still need to wear them in public transport and pharmacies, so I'm pretty sure they will be with us for a while.