Just been looking at the Media section on the runescape homepage and I came across several images revealing new updates to RS, including graphical updates like the recently released Grand Exchange graphical update, and updated lava in the wilderness. Below is a taster of 3 upcoming updates.

Burthorpe Graphical Update:


Darkmeyer:


Unknown (According to the RS wiki, it MAY be East Ardougne):


There are more images located here: http://www.runescape.com/kbase/guid/media