There are parts of the world, South Korea for example, where people commonly wear masks year-round and have for ages, either because of fine dust pollution or just generally if you're not feeling great and go out, it's polite to others. Might see this being adopted in places like that. In additional, I personally am happy if we normalize the wearing of masks, I have awful seasonal allergies and masking up has been amazing for me.

I don't think there's any indication that mask requirement will abate anytime soon. All posturing from western leadership point to precisely the opposite. The notion that the mask requirement will disappear in as early as 1-2 years is farcically optimistic.