Personally I would like the existing Shooting Star and Evil Tree distractions to be changed to the way they work on RS.
Evil Tree
It's currently missing the roots that you have to chop and then kindling that the player burns to assist in killing the tree.
It always spawns at Tier 90, lets have some randomised variation and allow it to be anything from 10-90.
Adjust it so that it doesn't end once 50 total kindling between all players has been obtained, let the Tree have health that the players have to diminish.
Change the spawn timer to 1-2 hours so it spawns more frequently.
Shooting Star
It always spawns at Size 7 lets change this so it's randomised between 1-9.
Again it's based on how much dust is gained between the players. Change this so the star has a health based system that the players chip away at.
Change the spawn timer to 1-2 hours so it spawns more frequently.