Here is a list of the current dailies available for Thrallmar. There is currently only (1) daily active for this area. I know it is a short list but this is an effort on my behalf to get all dailies listed on the website. Here are the dailies for Thrallmar.

Hellfire Fortifications: Horde

Requires: Thrallmar neutral
Where: Battlecryer Blackeye in Thrallmar
What to do: Capture the Overlook, The Stadium and Broken Hill. This is a PVP objective and will flag you for pvp on a PvE server.
Rewards: 1 Gold, 3 mark of Thrallmar and 150 Thrallmar rep