I know Hunter talents haven't been added yet, but I think I had a cool idea for one.
When I got this idea I was thinking of the Paladin 'Lay on Hands' ability. I don't think any form of healing(other than on the pet) is in character for the hunter, but I was thinking of how powerful LoH is and also about its 1 hour cool-down time. Anyway, this is what I was thinking....
Call of the Wild: Summons animals to join you in battle(either random creatures, or addition creatures of your current pets type.
Rank 1: Summons 2 creatures, 3 levels below your level, to fight for you for 45 seconds.
Rank 2: Summons 3 creatures, 2 levels below your level, to fight for you for 45 seconds.
Rank 3: Summons 4 creatures, 1 level below your level, to fight for you for 45 seconds.
Rank 4: Summons 5 creatures, of your level, to fight for you for 45 seconds.
Rank 5: Summons 5 creatures, of one level greater than your level, to fight for you for 60 seconds.
This would probably have to be tuned, but that's the general idea. If you cast any rank of this ability, all the other ranks would then not be able to be used until the 1 hour cool-down time has been met. That ensures that you can't use other ranks of the ability thus abusing the talent. I also think there should be a small count-down timer shown to let you know how long you have before the extra animals leave.
I tried to pick short durations on purpose as 45 seconds in a fight is actually a good amount of time as a lot can happen in 45 seconds. Too much time can be really too powerful. This already has the advantage of helping you take on critters and situations you might otherwise be able to win in. I feel Paladin's LoH ability helps them do the same though so it seems fair.
The summoned pets btw would all be linked to your current pet. All the settings of your current pet would apply to the summoned pets. Because of this you might not want to have "aggressive" set as you might get more critters into battle than you can handle. All summoned pets would also attack your pet's current target.
This is all subject to modification, but just seemed like a cool hunter idea. Interested to see what others thing of this.