devamar, thought of any control point animations yet, payload objectives? Target ID looks nice, but the different overheal color from the player lists I'd steer away from and make those the same color for viewer consistency. Respawn indicator/dead state differing in look from alive for player panels could be helpful.
If only we could make the medics always sort to a default spot for the medigun indicators or to be glued to the class panel.
Scoreboards are really a non issue, got a very simple one for that in mind already, I just have to make them look like whatever the targetids and playerlists are going to be. Winpanel is going to be similar as well, no need for individual player highlighting imho if there is external log based round stats available.