Now that Runescape is comparatively dead What you believe Jagex would have done
Bossing - Bossing is better today. For a long period, the only bosses were the Kalphite Queen and KBD. These were quite predictable. The bosses are now added regularly and provide new perspective RS Gold. The Quest storylines have definitely been improved since RS3. Prior to RS3 there was just one interesting storyline. Even that one ended poorly. There are now more intriguing storylines. These stories make me eager to see new quest releases.
Custom sized rooms, hallways, etc. Set furniture wherever you like. There are 20-30 plots of land around the globe that you can build homes on. Will be instanced, so you'll see yours every time. Can see friends or random players as well. This new method of training will not create an "furniture manufacturing capability". Players can buy plots and NPCs can commission houses.
I was hoping to have it repaired with EOC however, I didn't have the time. Would like it to be leveling summoning by using NPCs instead of creating pouches. Familiars could also level up. Agility is a good thing! Dislikes running energy in the sense of a mechanic however, it's not able to eliminate it as of yet. It could accelerate certain events (such the fletching).
More useful teleports. Switch between shortcuts. Multiply your training. Mining and Smithing. Repairing the level system. Re-design the smithing bracket completely to make it rune level fifty. Create new tiers Buy OSRS Accounts. Dragon ore isn't required, but you could modify dragon metal already in existence.