I may add more later but this is what comes to mind rn
- Fight caves and inferno tasks option after having completed either one once
- Konar location-specific slayer tasks + keys
- Ardougne diaries for the ardougne cloak for the farming patch tele
- Lumbridge/draynor diaries for the explorers ring for the farming patch tele
- Spirit tree patches (including teleports)
- Humidify functional for filling vials, watering cans, turning seedlings into saplings
- Ardougne rooftop course!!!
- Zeah runecrafting more like OSRS, in a way that it's also more xp/h than deaths
- Double the rate at which you cut gems, similar to what you did for smelting ore
- Make volcanic ash yield somewhere between 1-10 at a time
- Increase high level imp spawns at puro-puro, specifically dragon ones
- Increase farm pet rate by 300000
- 1-click smelting bars on furnace
- Ectophial
- Increase lizardmen task size + weighting