This new map covers The Merchant's Den from the Coffers and Coffins update. It works for Solo, Heroic I, and Heroic II. The zone-in can be found in Forlorn Gist.
Code:
<ImageStyle Name="exp18_dun_merchant_den_solo" displayname="The Merchant's Den [Solo]" zonerect="104.5, -91, 296.5, 138">
<ImageFrame Source="images/maps/map_exp18_dun_merchant_den.dds" SourceRect="0,0,512,610" />
</ImageStyle>
<ImageStyle Name="exp18_dun_merchant_den_easy" displayname="The Merchant's Den [Heroic I]" zonerect="104.5, -91, 296.5, 138">
<ImageFrame Source="images/maps/map_exp18_dun_merchant_den.dds" SourceRect="0,0,512,610" />
</ImageStyle>
<ImageStyle Name="exp18_dun_merchant_den" displayname="The Merchant's Den [Heroic II]" zonerect="104.5, -91, 296.5, 138">
<ImageFrame Source="images/maps/map_exp18_dun_merchant_den.dds" SourceRect="0,0,512,610" />
</ImageStyle>