@stephenreis123 The 5.2 valor gear requires a rep, but it's not a rep you earn from dailies. (There is also a daily rep like in 5.1.)- Greg Street (@Ghostcrawler) January 12, 2013
This announcement will be music to the ears of many players who were not overly enamored with the gearing system at the start of Mists of Pandaria. Its focus on daily quests in order to purchase valor gear was a big change from Cataclysm, and not always popular, although it has many fans.
Ghostcrawler is likely, though not certainly, referring to the Shado-Pan Assault faction. The patch 5.2 PTR notes had the following to say about this new faction:
From this patch note excerpt and Ghostcrawler's tweet, it seems fairly likely that the reputation for the Shado-Pan Assault will be earned, not from carrying out quests within the raid, but simply from killing bosses and progressing. This is very similar to Firelands' Avengers of Hyjal, but the rewards earned from it will hopefully not purely be rings, trinkets, cloaks and belts.
Join the Shado-Pan Assault in their singular drive to see Lei Shen, The Thunder King, defeated once and for all, and gain access to impressive Valor reward items. Reputation with this faction can be earned only within the Throne of Thunder raid dungeon.