What Jimlok said. Although this was recently posted on the community lists by Azuulai:
Name: Darkspear Revolutionaries
RP/PvE/PvP: RP
Theme: Darkspear Trolls
Summary: A Darkspear Troll centered RP community that is open to all individuals that RP Darkspear so that we can create events, discuss lore, and have some fun!
Prerequisite For Joining: Must RP a Darkspear Troll
Community Link Information: https://www.worldofwarcraft.com/invite/9bNjaMAFney?region=US&faction=Horde
I think people are interested. It's just that no one has managed to keep things going over the long term. I've seen a few come and go over the last year. Here's hoping all the trolls can come together and create something!