i have an idea.
If they want to ballance classes, i think they change somethink in current stats. So if u want to help recognize what they change after update. Make a ss with your naked character and panel character opened (in C button). Is important to be naked because u cant have any item with add effect atribute (u can still wear jewelery because it doesn't change in that panel).
If they do balance stuff it will be the values on the skills so you can just look at the skill's information. The only thing worth balancing right now though is the classes at level 29 for the kid's WMAT.