[edit] Of course my view of the current tree assumes no major changes before release. I however expect more changes.
I see the core Cat build as
Talent Calculator - World of Warcraft with 5 pts left. From the perspective of the only Feral in my raid groups. I will likely finish off Perseverance leaving 2 unspent points that will go to either Predatory Strikes, Infected Wounds or Primal Madness just to spend them. May also get 3/3 Imp Mangle and 4/5 Perseverance depending on how many Kologarn style fights there are.
Talents not taken;
Thick Hide: No effect on dps, Survival/Bear Talent.
Improved Feral Charge: PvP/Bear talent unless Ravage massively outweighs getting mangle/bleeds/roar up.
Brutal Impact: PvP talent. Possibly a Bear Talent for a second interrupt.
Predatory Strikes: PvP talent unless Ravage ends up being really good. Even then 2 points for an ability you may use 1-4 times max in the first 10% of the fight is expensive. Cast time reduction is nice but also not worth 2 points.
Natural Reaction: Bear Talent
Survival of the Fittest: PvP/Bear Talent
Primal Tenacity: PvP Talent
Protector of the Pack: Bear Talent
Infected Wounds: PvP/Bear talent, only current content this is good for is Valks during p2 LK.
Primal Madness: Trivial/Bear Talent, would be better if it also increased regen during buff duration or some other type of secondary effect.
Improved Mangle: Trivial dps boost with 1 minute mangle duration. Unless there are more boss fights(IE Kologarn) where we are stuck in front.
Pulverize: Bear Talent
Optional Talents taken, most taken to move down the tree.
Feral Instinct; AoE/Bear talent, with the apparent emphasis on CC and if future boss fights don't have clumped adds(like a majority of current bosses) then it won't be used except for some trash pulls.
Nurturing Instinct: Makes healers jobs easier, personally I like it.
Leader of the Pack: Assassination rogues are getting this buff, and Looking like the spec line they are going for PvE.
Improved Leader of the Pack: This pushes LotP back towards(but not to) mandatory as it is the only source of this effect.
Furor: Taken to move up tree.
Perseverance: 4%(10% maxed) reduction on Spell Damage taken.
Natural Shapeshifter: Taken to get Master Shapeshifter.
Mandatory Talents;
Sharpened Claws: 20% DPS Boost for Mangle and Rake
Ferocity: 5 point cost reduction for Mangle, Rake, and Swipe.
Feral Aggression: 15% DPS boost to Ferocious Bite, which is now an execute ability.
Shredding Attacks: 10 point cost reduction for Shred.
Feral Swiftness: 15%/30% move speed. Allows DPS enchant on boots.
Predatory Instinct: 10% more critical hit damage.
Feral Charge: Huge mobility talent.
Fury Swipes: Extra DPS + chance to proc OoC.
Primal Fury: Extra combo point on ability critical hits.
Heart of the Wild: 10% Cat AP.
Survival Instinct: Huge survival boost for 1 point. especially when combined with Barkskin.
Endless Carnage: 6 more seconds on Rake and Savage Roar.
King of the Jungle: 60 energy on a 30 second cd.
Mangle: While Sub rogues are getting the same debuff, strongest frontal attack that Feral Cats have.
Nom Nom Nom: 100% chance to refresh Rip to full duration when using Ferocious Bite on a target below 25%. Turns FB into an execute ability.
Rend and Tear. 20% DPS boost to Shred on bleeding targets and 25% crit chance increase to Ferocious Bite on bleeding targets.
Berserk: 50% energy cost of abilities for 15 seconds every 3 minutes.
Blessing of the Grove: 4% DPS boost to Shred.
Naturalist: 10% more physical damage. All Cat damage is physical.
Omen of Clarity: All auto hits and damaging abilities have a chance to make the next special used free.
Master Shapeshifter: 4% more critical hits in cat form.
Personally, with this talent tree I went from having 2 different cat builds(trash vs single target) to 1 obvious build that gets everything. I am going to miss 30% aoe damage reduction, 10 free expertise and 80% cost refund for missed finishing moves(unless they bake the cost reduction into finishers). I'll also miss all of the additional scaling we got from gear(2% to all stats from Imotw,20% more of the ap on a weapon from Predatory Strikes, 6% to all stats from SotF)