The IC map right now is very devoid of information. It only shows treasure vaults, crafting stations, and entrances to the sewer. It really needs to show World Boss icons. It also needs to show the names of the districts (I can't remember if this is there or not already). These things would greatly facilitate communication between players.
Technicality: I realize the World Bosses roam around a lot, but there really needs to be an icon of where they spawn.
Also, I don't want to have to install an addon that shows these things. They should be available by default for all players.