The easiest way forward is to genuinely take things to the next level

Increased Global Illumination
Because you can have seen in my prior dev blog, young kids irradiance and circling occlusion have had an important impact on the light in RuneScape. The particular question now is how do we improve on this specific?
The new GI method we have is a significant improvement over the Coffee client, but cannot really be improved with too much. We could utilize a combination of screen room directional occlusion (SSDO) and large-scale circumferential occlusion, but the profit would be minimal.
The easiest way forward is to genuinely take things to the next level. This would come by means of a real-time GI solution known as voxel cone tracing, which can be essentially highly determined ray-tracing to obtain individual bounce indirect lighting style from the scene. Currently the best implementation is definitely provided by Nvidia GameWorks, but this utilizes very high end GRAPHICS CARD features, so only a few players would have use of it.
There is a fewer computationally expensive option known as cascaded mild propagation volumes (LPV), which would work on a lot more hardware, but top quality and stability certainly are a problem, especially above large distances. Several games that use LPV have a hybrid method where they slide back to SSDO as soon as the LPV has attained it limits, which may also be an option for people.
Improved Reflections and also Image-Based Lighting
Glare in games are in reality a way of simulating roundabout specular lighting from your environment, and in real-life, every object shows this to some degree. Simply how much of the environment can be reflected from an subject depends on the shininess of that object's area. Screen space insights and parallax-corrected cubemaps are two modern day techniques that make an effort to get around the limitations regarding standard planar glare and hand-placed surroundings probe reflections.
Most likely the best we can optimism initially is display space reflections for models that at the moment exhibit environment mapping, which would also enable reflections on curled surfaces. Beyond that will, it would be nice to combine this with parallax-corrected cubemaps, but that will require involvement RS 2007 Gold coming from artists and pipe changes.
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