"USLeatherneck: Will Bioware implement Target of Target (including a visible cast bar above the portraits) in the new UI?
Gabe Amatangelo: Yes. Target of Target on primary target and party frames will be part of Game Update 1.2. Primary target already has a visible casting bar on live right now. In Game Update 1.2 target of target frames will have visible casting bars as well. Additionally, there will be various customization features in all of those frames (e.g. repositioning)."