Dialog maybe, but the edit node should as close to the read mode rendering as possible.

Change 309349 had a related patch set uploaded (by JGirault):
Show current zoom in edit preview & VE mode

https://gerrit.wikimedia.org/r/309349

Question: should we allow to edit the map position by coordinates/zoom within VE, as suggested in T133814, or should it be read-only, as suggested in the patch above?

I think having 3 boxes for zoom/lat/long is such a rare usecase that we can safely postpone it for now. Maybe eventually we will allow a single field that gets automatically parsed (so a user can copy/paste it from somewhere else) - much nicer user experience, but I think it is a fairly low value at this point.

Change 309349 merged by jenkins-bot:
Show current zoom in edit preview & VE mode

https://gerrit.wikimedia.org/r/309349

In T129875#2776082, @Esanders wrote:

This feature is currently way too prominent for such advanced user information - and using a table in a callout is a very clunky way of presenting it.

Do you have suggestions for improvement?
This feature was requested by the community and no one has complained about the current implementation yet.

In T129875#2778114, @JGirault wrote:

In T129875#2776082, @Esanders wrote:

This feature is currently way too prominent for such advanced user information - and using a table in a callout is a very clunky way of presenting it.

Do you have suggestions for improvement?

Nothing concrete yet :)
Maybe a link inside the map itself, or a small text overlay like the copyright notice.

Moving off the sprint board - the Discovery team won't be able to finish this work at this time.