hmmm i think the only way the dragon chain will drop to a dramatic amount is if jagex was to release the dragon plate, but i dont see this happening now as of the release of the new third age items, based on the stats of the dragon and 3rd age armour it would be possible that the dragon plate, full helm and kite shield would make it have better stats than the 3rd age armour, causing it to go down but then again i dont see this happening and i think dragon amour wont drop much, if any significant amount but the chain will suffer the most.