I guess it is really to early to talk about new talent, glyphs, perks... The survivability and damage output cannot be seen only looking at changes in our class but it depends mostly on the changes for all other classes of course.
Considering pvp, during Pandaria expansion the feral was (and actually is) long enough a very weak class compared to others. Now just looking at worldofwargraphs, our beloved kitty was/is always at the bottom of the chart of the classes chosen and played in pvp (arena, rbg ...). Ok may be just as fc from 5.6... Not to mention at beginning of pandaria we had such a low damage, so low that they had to increase it a consistently each new coming patch (i.e. ravage from 750 again back to 950 damage).
I really hope that in WoD, blizzard will take this in consideration and make our class a little more competitive and easy to play just from beginning. And I wish that our class may stand a chanche vs other classes even in solo (i.e. unholy dk with conversion talent... just ridicolous .... infinite healing). I wish to read in trade chat "lf feral rbg and go" or "lf feral 2s arena"...
2 many wishes ?