I just read this suggestion in the general forums, but wanted to make an official suggestion topic for it where staff and players can discuss the issue and work something out.
So pleeeeease: Add the Priest in Peril quest which apparently needs some objects connected here and there. I understand spawning NPCs may take some time (lots of em).
BENEFITS:
1. Slayer tower (creates market for whips, gmauls, etc, and is in working condition according to Prayer)
2. Swamp (exploration)
3. Barrows (awesome and rewarding minigame, simple to code (I've done it myself))
4. Barrows armors (and market for)
5. More monsters to fight (snails, vampyres, werewolves, etc)
6. Will get the community off the staff's asses for a bit (new content ftw)
7. Those colorful robes and stuff
8. Extra farming patch