I was not arguing against anything you wrote Haerengil, I was just trying to make my own thoughts clear. I agree, the Moria connection is probably something they'll use.
Look at this:
IMDb cast list
Morfydd Clark, who will play Galadriel, is only to be in two episodes in season one. This will be in the first two episodes, which I understand will be flashbacks and exposition. Several other actors and actresses shall also just be in two episodes. Others will be in 8 episodes. This could mean that most Elves will only be in the first two episodes, and that the first season as a whole will focus mainly on Men, Dwarves and Hobbits.