Few things:
Rogues chest: how does 25-125 BM per thieve, and 16K coins for normal mode and 8K coins for hardcore and ironman sound?
Wilderness barrows: any input on opening this back up to ironman and hardcore? One of the issues with it before was that barrows items, in general, had too high of a drop rate, which was tweaked at the same time/after wilderness barrows were restricted to normal mode only.
Agility course: how much BM per lap?
Fishing: should fishing give BM? Keep in mind at this very moment there are currently three locations for dark crabs and anglerfish.
Also, I'm not sure why monster aggression keeps getting brought up. Last I checked, having a combat level x2 + 1 only applies OUTSIDE of the wilderness. This is why bats and the low-level wizards in osrs, and even Edgeville skeletons, attack everyone.