#4 - Sept. 11, 2009, 11:20 p.m.
As all faction-specific quests—as well as faction-neutral quests which are part of a quest line—are reset as part of the Faction Change process, Reida, daily quests which are gated by such will be unavailable should a character switch from one faction to the other. This is intended, and a warning was provided within both our Faction Change FAQ (
http://us.blizzard.com/support/article.xml?locale=en_US&tag=FCFAQ) and Translation Table (
http://www.worldofwarcraft.com/info/faction-change/index.xml).
Your character will be able to complete these quest lines again, though, and reap their rewards. For Ebon Hold, proceed to the airship of your respective faction; for the Argent Tournament, approach the Seneschal within the primary tournament tent; and for Sons of Hodir, you'll need to re-complete the two quests which lead into "The Reckoning" and "Whatever it Takes" in Storm Peaks, as I believe you're only 4 quests short of re-opening your SoH dailies (please let me know if you encounter any difficulty, though).
Good luck!