I'd like to point out that I'm painfully aware that all of these these could (and some probably will) change at any time, but here are a few interesting talent changes that I noticed, hopefully to provide some intelligent discussion on how the changes will affect us and which talents take precedent over others.
First of all is the new Feral Aggression. The tooltip on the talent calculator says that it will reduce the cooldown on FFF (Bear) by 1/2/3/4/5 seconds. Now, unless I'm missing something here -- reduction on the threat from FFF, for example -- this is huge. This means that we could (conceivably) have a cost-free, high-threat ranged attack on a one second cooldown. This is astounding, to me, and if it sticks, well, I'll certainly have to investigate further.
Secondly I noticed Predatory Instincts. Now, ranks 1 and 2 of this talent simply state that they "Increase the damage done by your melee critical strikes by 3/7%." However, the third rank modifies it by stating that it only affects your attacks in Cat form. Well, this is a little confusing, to say the least, but my thinking is that the way the talent is on live servers, it only affects Cat form, but for Cataclysm it will affect ALL melee attacks, and that the text on rank 3 on the talent calculator is wrong. Assuming that it is, and that this talent gives 10% melee crit damage, that's a nice talent for threat.
Third I'd like to point out Improved Feral Charge. Pretty straightforward; 15/30% haste after using Feral Charge (Bear). This is amazing, both to start out fights with, and to utilize during combat. I don't know about the rest of you but I Feral Charge like a madman when I'm tanking, and so this 30% haste buff is simply ludicrous. I'll definitely be getting this one.
Following this we are presented with Fury Swipes. This is the talent that provides a 4/8/12% chance on an auto-attack to proc another free, instant auto-attack hit, with a moderate 6 second cooldown. Now, this talent is certainly intersting, because Blizzard has said that they're removing all "next swing" attacks like Heroic Strike and Maul, which means that all of our attacks will be instant and this talent will provide a sort of fire-and-forget attack; that is, click on the boss to begin auto-attacking and this talent will take its course. This seems like a pretty decent bonus to threat via the extra damage from the proc and the extra rage it provides, but personally I'll treat this as a wait-and-see.
I guess Brutal Impact would come next, if we're working down the tree. Now, from reading the tooltip on this talent I'm assuming that they plan on reducing the cooldown of our Bash ability to 30 seconds from 1 minute, otherwise this talent quickly becomes obnoxiously bad. But even still, assuming Bash will have a 30 second base cooldown, this talent is mediocre at best. With the exception of Feral Charge (Bear), which requires a minimum 8 yard range to use, we don't have a real reliable interrupt. Of course, neither of these abilities are too useful when it comes to interrupting for the sake of repositioning a caster -- Bash has a stun component and Feral Charge a root effect. To me, this stinks of a PvP talent, though maybe it appeals to others more.
Endless Carnage is next up, and it's short and to the point. It simply increases the duration of Pulverize by 3/6 seconds.
Leading right off from Endless Carnage we have Pulverize, our new tanking ability, which requires Dire Bear Form and 15 Rage to activate, and hits the target (or targets? I think I read somewhere that this was to be our new AoE tanking ability but it doesn't seem that way now -- can anyone clarify this for me?) for 120% weapon damage plus 943 for each stack of Lacerate on the target, and consumes the Lacerate effect to provide us with 2% critical strike chance for each stack consumed. We're probably talking easily 7k non-critical hits with 5 stacks of lacerate on the target. Essential. If you don't get this talent you are not a Feral Bear, simple enough.
And unless I missed something major, I'd say that pretty much rounds out the Feral tree for new and updated tanking talents. But there's still a pleasant surprise for us in the Restoration tree, and that comes in the form of a 5 point talent called Perseverance.
Perseverance itself is pretty straightforward: for every point you spend, you take 2% less damage from spells. Now, I haven't seen any of the other tanking classes' talents because they're not out at this time, but this talent combined with Protector of the Pack this gives us a cumulative total of 22% spell damage reduction, which I'd say is more than substantial. However, I'm not sure if this talent is worth having all the time. Bosses do a lot of damage to tanks for sure, but most of the time the lion's share of damage we take is physical. On magic-heavy fights this talent is a definite boon, but if there's no magic damage coming in, these five points are completely wasted. I'll probably relegate this to my secondary spec for those fights that I need it.
That's all! Everything else is the same, unless I overlooked something. Let me know if you have any thoughts or input on any of these.