16 elemental trade goods items

The Forever catalog holds 16 elemental trade goods items, topping out at item level 55 with Essence of Air, Essence of Earth, Essence of Fire. Every crafting material in the game: herbs, ores, bars, cloth, leather, gems, enchanting materials, and reagents. The supply side of the whole crafted economy, with prices and 7, 30, and 90 day history per market.

Source: the World of Warcraft: Forever beta client's item tables and Blizzard's Game Data API. Updated with each beta build.

Only the elemental trade goods items new in Forever