I see the Health bar got changed. Or do I have something wrong with my eyes.. 1 more thing.. RELEASE THE DAMN THING.. IT'S TOO AWESOME FOR SCREENSHOTS.. XD
The UI in general is really flexible and allows for a wide range of tweaks and modifications. Currently, players are able to determine each individual color of the scoreboard e.g the background colour, text colour's and position/scale I believe too.
In relation to player name tags these are also very flexible. Player's will be able to set the scale of the nametags on each player, the distance at which nametags appear/disappear, the overall graphic quality of each tag.
In terms of the health bar this is also applies. Players will be able to exchange the health bar for something else. So if you don't like how the new circular tube health bar looks a custom image can be imported instead such as a rectangular health bar which looks more like the health bar in the current version of vc-mp. Aswell as that health bar colours can also be set so if you don't want a green health bar when a player is at maximum health you could have another colour such as purple.