I've been trying to make this suggestion for a while now, but due to time constraint and lack of motivation I was unable to until now.
I would like to see this game have some new content that would separate it as the #1 RSClassic PS while making it relatively easy for the developers to program.
Slayer was a bit hit and many people enjoyed it, but it's time for some new content. This will encourage players to grind more in the game and alleviate their boredom, after all we all play for entertainment.
I am proposing introduction of pets into the game. People love pets and the element of surprise. They will have incentives to max out an account, participate in different skills, including slayer.
How it would work:
1) Every skill in the game would have a specific pet e.g. firemaking pet, fishing pet, slayer pet, etc
2) Each pet will have a unique name (feel free to suggest names below)
3) Each pet will have a unique ability similar to the skillcape (feel free to suggest their ability below)
4) Pets can be obtained by performing the skilling task ingame
5) Pets have a drop rate ( don't make too easy, but not too hard either)
6) Pets will basically follow you around
7) Toggle option to show/hide pets
8) Gold sub and Platinum subbers have higher chance of getting pets (wink wink Kleio/n0m)
9) Pets will not be allowed in the wilderness
10) All pets can be purchase at home if you lose them for 500K (money sink)
You don't have to introduce all pets at once, do them in batches. Couple pets a month until all skills are completed.
Some examples of pet abilities - you can use them or think of other pet perks:
1) Firemaking pet - can use food on him to cook
2) Fishing pet - increased batch size
3) Slayer pet - more damage on npc
4) Herblore pet - can use him to fill vials
5) Agility pet - increased agility exp per action
6) Fletching pet - increased exp
7) Mining pet - chance of mining extra ores
8) Smithing pet - can use him as a furnace
9) Woodcut pet - increase rate of cutting trees
10) Crafting pet - increased exp
11) Thieving pet - chance of thieving 2x
Comment below the name of the pets/abilities you want them to have.