I was speaking with one of the developers and they asked me to post here about items that are no longer on any loot table that could be added back. Here are some from acrylia that weren't intended to be removed, but were due to the zone revamp (kind of like wavecrasher in Siren's grotto). Soulbane http://everquest.allakhazam.com/db/item.html?item=10376 Skull Shaped Wand http://everquest.allakhazam.com/db/item.html?item=11807 I am sure there are many others, but this is a good start.
Malarian Wing Blade (24567) used to drop in Plane of Disease. (mob missing on live?) I believe both Sainy's Singing Dagger (7234) and Whistling Dagger (7246) went missing with the Mines of Nurga and Temple of Droga revamps. Evensong (11554), Six Note Blade (11553), and Kelin`s Seven Stringed Lute (11573) from Maestro of Rancor in Plane of Hate no longer dropped after the revamp. Robe of the Spring (1605) from Xygoz in Veeshan's Peak disappeared with the revamp.