I noticed during some dummy testing that some skills that exceed 10/5 skill point investment have the new, cooler visual effects hinted in the patch notes. So, 10/5 Meteors were producing cool Blue Fire Meteors and 10/5 Firewalls exhibited blue fire that could stack with the visuals from Searing Wards.
Pretty sweet so far, what have you seen? 
- More skills will now appear more visually powerful as the skill gains power. Additionally, existing visual scaling has been improved.