- Threat-meters with GUID indexed tables, that will give you very accurate threat information on your current target (UnitGUID("target")) or on a leader-specified main-target (a leader-announced GUID).
- DOT timers with GUID indexed debuff-tables (updated by monitoring the combat-log), that allow you to monitor very accurately the duration of buffs and debuffs on your current target. Independent of their origin.
- Arena addons that will get the enemy's GUID on mouseover, with the ability to display real-time HP updates through GameTooltip:SetHyperlink("unit:" .. guid).
Just want to know if this will really be possible, and arise the question whether is actually should be.