Based on a press release from the European Association of Event Venues from the 24th of April, here is what seems to be partially accepted by the politicians so far in one of the counties Schleswig-Holstein.
https://www.dgvm.de/wie-geht-es-mit-veranstaltungen-weiter-positionspapier-vom-evvc/
"The Association has titled the press release as "Less visitors per square meter, more organization", central points in their paper are:
the reduction of the density of people to a maximum of 1 person per 4 m²
the increase in distance for visitors to a minimum of 1.5m in all directions
the extension of normal passageways from 1.2m to 2.4m
conforming to the appropriate universal hygienic requirements, as well as
a qualitative entry and egress management as well as the relevant steering of visitors.
The Association couples this with the tip, that "Exhibitions, Congresscenters, Congresshotels and multifunctional spaces and city halls in Germany, compared to other international venues, are some of the most modern and at the highest technical level. Required hygiene standards can be executed without problems."
Furthermore they state in the actual press release, that they assume that first of all business events, so formats such as meetings, seminars and conferences and exhibitions in the area of B2B will take place.
Since the audience can be led and acknowledged and can be the blueprint of what is to come for the more public events.
And a sentence I did enjoy:
The personal encounter is an important part of our human nature, and with that events are essential services.
If you have any further questions on the paper, since its all in German let me know :)...