There's a couple I've really wanted to see, and I decided to list them out. I haven't done Torghast on Marksmanship, so I really only have things for BM.

Bestial Wrath damage increase is increased by 1% for every soul fragment you have

Barbed Shot bleed is applied to Multi-Shot

Kill Command hits everything near the pet as an AoE

Intimidation summons a dire beast when used

Aspect of the Wild also summons your first four stabled pets for 20 seconds to fight for you (basically old Stampede)

Mawsworn Seekers are friendly to you. You can interact with them to have them fight by your side indefinitely. They respond to Kill Command at 50% damage, and gain benefits from Bestial Wrath and Mend Pet. (Basically, the idea is that you can have an army of these dogs at your side if you come upon enough of them.)

Hunter's Mark summons a horde of five mawrats to attack your target for 15 seconds. This effect has a 30 second cooldown

You gain an additional pet under your control which benefits from Besital Wrath, Kill Command, and Mend Pet.

All of your pets are permanently under the effect of Mend Pet.

Also a possible rework to Neural Enhancer (the one that increases your pet's damage by 500% so long as it's under the effects of eyes of the beast): Your pets gain increased attack power equal to 50% of your Agility.