Well, it took a little bit, but I think I was able to compile all the "new" Dev Tags from the recent patch notes. The subjects are my best guess from the context the tag was found in. Please forgive me if they are not accurate or descriptive enough. I am hoping the Community Team will do a better job if/when they publish an official updated list.
  • [dev1057] HP Bar Size Below Names
  • [dev1056] Party Enhancement On Screen Notification
  • [dev1055] Guild Tasks
  • [dev1054] ???
  • [dev1053] Map and Mini-Map Icons
  • [dev1052] Text Designations to Select Targets
  • [dev1051] Class Requirements for Sidequests
  • [dev1050] Abilities of Enemies
  • [dev1049] Actions and Motions of Enemies
  • [dev1048] Displaying Current Patch Version Information on Title Screen
  • [dev1047] Battle Music
  • [dev1046] Saving Retainer Locations After Server Maintenance
  • [dev1045] Text Command to Toggle Display Names On and Off for Enemies (/enemyrank)
  • [dev1044] Text Command to Toggle HP Bars On and Off (/hpbar)
  • [dev1043] UI Gauge Sizes
  • [dev1042] Messages Informing Players of Items Obtained Through Gathering
  • [dev1041] The Rate Accessories Degrade
  • [dev1040] Adjustments and Additions to Aggressive Icons
  • [dev1039] Reduction of Randomness Affecting the Approach Phase in Gathering
  • [dev1038] Implementation of New Equipment and Items
  • [dev1037] Enhancement of Battle Effects
  • [dev1036] ???
  • [dev1035] Improvement of Targeting Modes

I am hoping this will help players properly tag their threads in regards to the new content and features. That in turn will help the Development Team find our feedback more quickly.

Oh, and if you don't know where to find the original Dev Tags, here's that list too.
  • [dev1034] Introduction of public companies
  • [dev1033] Changes to class names
  • [dev1032] Changes to actions for Disciplines of War & Magic classes
  • [dev1031] Design and release of notorious monsters
  • [dev1030] Enemy distribution adjustments
  • [dev1029] Environment collision detection
  • [dev1028] Addition of beast tribes
  • [dev1027] Balancing of enemy attributes
  • [dev1026] Changes to claiming/engaging enemies
  • [dev1025] Changes to enemy group dynamics
  • [dev1024] Revision of crowd control actions
  • [dev1023] Changes to enmity calculations
  • [dev1022] Auto-attack system
  • [dev1021] Revisions to party-based skill point acquisition in parties / Battle...
  • [dev1020] Party system changes
  • [dev1019] Examination of an auction house system
  • [dev1018] Improvement of market area connectivity and stability
  • [dev1017] Introduction of new synthesis concepts
  • [dev1016] Synthesis interface improvements
  • [dev1015] Revision of battle loot and quest rewards
  • [dev1014] Reexamination of class-based requirements for gear
  • [dev1013] Reassessment of the gear affinities
  • [dev1012] Higher visibility of the optimal rank of items
  • [dev1011] Balancing of guildleve rewards
  • [dev1010] Improvements to guildleve-related information
  • [dev1009] Changes to notification windows
  • [dev1008] Character jump feature
  • [dev1007] Improvements to journal usability
  • [dev1006] Improvement of dialog windows(ex. market area selection)
  • [dev1005] Improvements to the log
  • [dev1004] Quest-related system changes
  • [dev1003] Public company quests
  • [dev1002] Storylines and world quests
  • [dev1001] Quests revolving around the danger facing Eorzea
  • [dev1000] Tutorials for new players