I actually adore the friendly relationship the Revantusk and Forsaken have. Several live in Revantusk village and according to Eliza Darkgrin;
“The trolls here are quite accepting of my kind. After all, they spoke to the dead for centuries before the Forsaken even existed.”
Seriously the Forsaken and Trolls are both into spiders, bats, shadow magic, bubbling cauldrons full of corrosive concoctions and are truly dedicated to recycling (see: cannibalism).
They get along well enough that the Revantusk commandos are willing to work with even Dark Rangers. Neither are thrilled about it but politics have made for stranger bedfellows.
If we ever revisit the Hinterlands proper I’d love to see Jintha’Alor made into proper hub with Revantusk Village becoming a proper port with connecting ships to Zuldazar and the Echo Isles. Wouldn’t have to do much just make that preexisting Zandalari boat have 3 stops instead of 2. Figure you could also buff up Aerie Peak and expand the Deeprun Tram to stop both there and at Shadowforge.
From there the Forest Trolls, lead by the Revantusk with the full blessings of Empress Talanji, could not only be playable but serve as the resident nature magic specialists for the EK Horde.
We could also have the Mossflayer Tribe, independent sapient undead trolls of the Plaguelands who turned after eating contaminated meat, ally with the Horde and serve as a further connecting middle man between the Forsaken and Forest Trolls, much like the Dark Fallen fo for Silvermoon.
Lot of potential for interesting stuff there. In particular I would actually go as far to soft retcon Troll Druids as coming from the manimal Forest Troll primals. They do have a portal to the Emerald Dream in their backyard afterall.
And then you can do some interfaction cooperation and horn locking between the Forsaken, Revantusk, Sin’Dorei, Dwarves, Rendorei and Kaldorei. We could have disagreeable separatist Forest Troll tribes and Wildhammer clans causing trouble and trying to inflame tensions.
The Hinterlands is just such a cool zone. I often make fun of WoW for relying on forests too much. But one encircled by snow peaked mountains in a region where it’s the only non-haunted weald makes it pretty memorable and pretty.