What I think would be kinda to be able to see is your characters performance. What this mean is on the LB you would be able to select your char name and it show your landed/total attempts and dmg dealt.
Landed/attempted
For example
Total attack time - 466 seconds
Auto attack - 350/423
Total dmg done - 1,400,00
Shatter - 35/50
Total dmg done - 140,000
Pummel - 120/185
Total dmg done - 300,000
Rupture - 67/89
Total dmg done - 450,000
Pet skill - 35/35
Total damage - 75000
Mount skill etc and so forth
I think it would just be kinda nice to see how well skills are actually doing and if it’s worth it to cast