Yah, the breadcrumb I was wondering about was the one that sends you to the ZG-related quests. Alliance seems to have one; Horde doesn't?
I made a post on the PTR forums, and a replyer told me this:
There is a (neutral) Troll NPC in Stormwind, that sent me to the middle of STV. I landed in Rebel Camp in the north and I got overwhelmed by trolls, I believe level 83 or 85.
When I slaughtered the most of it, I went on my bronze drake to the middle. There I got a quest, which asked me to kill 10 snakes and to heal (by means of a blue Troll NPC) 10 wounded Humans.
Then I had to click on a bonfire in the middle of the camp, and then I got an error message. Since then that quest line broke.
There are a few more quests which are incomplete yet. It will be clearer with additional builds in the coming days, I guess. The broken questline maybe fixed as well.
Going off this, I headed to the troll section of Orgrimmar; Griftah is indeed there, but the quest he gives is to go talk to Budd outside ZA--which then starts the old "go find this map, collect troll tusks" etc chain : /
I'm actually in Stormwind now (as an orc, yes, go figure) and can't find Griftah here, so I'm guessing he may well be phased
The raptor quest has been in-game since Cataclysm, it's not new--so I'm certainly hoping it does have a planned finish. I admit to being a little antsy about it!
Anyway, thanks for the experimentation & info! Hopefully we'll hear something soon--and out of curiosity, did you get as attached to your little hatchling as I did?