ZOS could add them as drops from mobs in IC, and help give a reason for people to go there. Xivkyn drops from keys, yeah, but if there was a chance for faction drops to spawn from the roaming bosses on streets of IC and in from the sweepers it'd be a great incentive to go back to IC.
Everybody avoids those bosses instead of fighting them, which could give incentive for those trying to hunt them (achievements) and to have a chance to actually do something of interest in IC.
ZOS could add them as drops from mobs in IC, and help give a reason for people to go there. Xivkyn drops from keys, yeah, but if there was a chance for faction drops to spawn from the roaming bosses on streets of IC and in from the sweepers it'd be a great incentive to go back to IC.
Everybody avoids those bosses instead of fighting them, which could give incentive for those trying to hunt them (achievements) and to have a chance to actually do something of interest in IC.