There would be more work to be done, but I do think that Rune being the highest thing you can smith is the result of short-sightedness on Jagex's part, although that is long in the past. Smithing dragon would cause the prices to drop, but dragon really isn't as special as it used to be. Even Jagex has gone back on the comment they made years ago to keep Dragon special and not complete the set by adding in the Kite, the Full Helm, and the Platebody, and two of those three are in the game. I think if Jagex introduce smithing Dragon, they should do it in a similar way to smithing the Dragon platebody and Dragon Kiteshield. By that I mean finding pieces. Ughhh making dragon ore would just be terrible..they've totally devalued dragon weapons, and making dragon ore to make these weapons is just stupid. But I am fairly certain that a smithing update will involve granite. If you go to that one city where Pyramid Plunder is (it's been a while since I was members, sorry) and talk around to some of the folks there, there are major hints about granite. I posted a convo pic from it a while ago, like a year ago, but nothing's happened and the pic is on another computer.