There getting some nerfs. I'm sure there are some comps that work well with ferals but rogue's are getting buffed and will most likely move back up to being one, if not the best, melee classes for PvP. I haven't done much PvP besides BG's in MoP so meh.
IMO DoC will still be weak cuz it requires you to use predatory swiftness and NS on HT for dps, and is inflexible in when you use them. HotW might be decent for the 6% agil and offheals in case your healer is cc'd, or for 2x dps 2's but that's just speculation.