Idea: On world map show only single wayshrine (main city) per region.

[Jhenox]

While I had the thought I wanted to post it here. When zoomed out to the world map it is extremely crowded with wayshrines. Is it possible that an addon could be made to show, when viewing the world map, to show only a single wayshrine per region for the major cities? If you click into a region then show them all as usual? Thank you.