Don't suppose those working on EQ2maps could just have the Filter PoI option only filter-out the icons displayed on the map/mini-map without removing search results for those PoI's could we?
Another thing that could be possibly improved upon is the over-lapping icons (even when zoomed all the way in).
Maybe remove redundant info and zoneline markers. And consolidate tightly grouped PoI icons into one, adding in identifying icons (red crosswords for named, page for page harvest..ect) within the tooltips window for that consolidated PoI. And instead of automatically creating a waypoint to the location, clicking on the consolidated PoI icon would open up a search result with all the individual PoI's listed from that consolidated PoI.
The mini-map consolidated PoI's on the other hand should just create a waypoint to the location of the PoI on the map (would get annoying having the main map pop-up everytime with the search results).
Keep in mind, these are just some of my thoughts. I still think the map system and maps are looking great so far.