The goal for Iron Banner gear was to provide Armor powerful enough to interest most players after a few weeks of gearing up, and aesthetically appealing to all players. But for very advanced characters, wearing Exotics and Raid gear, the equipment was not powerful enough to consider.
In the next Iron Banner, new exclusive reward Armor will be bumped to Level 30, but will still only be available in two slots. For advanced players, this will make them viable functional or visual sidegrades.
Iron Banner Weapons were already viable sidegrades for all but the most advanced players, but we would like to expand the options available. In the next Iron Banner, the weapon types available will go from two to four, divided between drops on match victory, and purchase from Lord Saladin in the Tower.