The keybinding Interact With Target (IWT) and the option Click to Move (CTM) are the two biggest changes.

The main targets.
The slaves assist.
You press your IWT keybind.
Anyone with CTM enabled, runs to the target and melees.

You might have to spam in pvp, as the target will move on you etc.
But a melee team is very much viable now, even a powerful option.