There are alot of Mysteriuos entrence's, my suggestion is to create room's for them, witch could be for: skilling , slayer monster's bigger lvl, more xp, same or verry rare items for slayer, mini boss'es for some drop's. Some of them could be only accesable if you have donator membership. There could be new monsters which drop skilling supplies (noted).
P.S. Sorry for bad english.
Thx, have a nice day!
First off I totally disagree with you, there is no reason to make a new cave / dung and just set in a shit ton of skilling spots if that is what you mean. I know some private servers have that but they don't value skilling at all.
For the monsters we got a boss in the most caves, and if you have tried lvling from 90-99 slayer I can assure you there is no need for them.
Also while you doing slayer you receive a lot of noted supplies, mithril drakes drops noted bars, nechyes with a lot of noted herbs and the other high lvl monsters also drops a lot of skilling supplies