To add onto the suggestions I posted on the first page, maybe a toggle death spawn? The quest recruitment drive allows a person to set their death point to white knight castle but chances are, that might not be released for awhile. So, possibly allowing death spawns to any of the main cities, varrock, fally, lumbridge, and ardougne? Allows for quicker banking.
If you're too lazy to check the first page, these are my other suggestions
Forum: Increased sig and avatar sizes. The current signature size rule is 750x150. The 150 is too small in my opinion, perhaps increase it to 250 or 300 for donators. As for avatars, maybe allow avatars that are 1/2 bigger for donators.
Ingame: An extended ::players command where it shows every player online after 30 players. Free use of Make over mage, haircuts, changing clothes?