Jack | RS UNRELEASEDさんのイラストまとめ

An amateur photoshop mockup of how graphically updated skill capes could be created from the courier cape model (the third image)

Equally, there are many graphically up-to-date Zarosian themed models that could be used in Elder God Wars, future quests or related content - if Jagex so desired.

Despite having fully animated, graphically updated models - Nex uses her old model during the Battle of the Monolith miniquest

Tyras Helm

Current Kal'Gerion demons vs. the previous models - for reference.

Unused Demon retexture / update

I think this is way too outdated to ever be used - and the face is much too blurry. But an interesting addition to the thread, no less!

*Personally*, I preferred the previous versions of Kal'gerion demons. Rather than the current demon-cows.