Well, at the moment the answers are: yes, I don't know yet, and yes.
For a change, the Goblin in charge of the skyfleet had the right idea: "What kind of madman orders away his close air support?"
Um, that guy.
/points at Hellscream
I kind of expected that both the Horde and Alliance lead in quests to the Twilight Highlands would be similar: find a Twilight spy, reveal him/her, and basically look good for your faction's boss. That followed the plan to the letter on the Alliance side, but the Horde side was, well, disappointing. Greedy goblins and troops on shore leave in a town that would make Vegas or Bangkok look tame kind of took the edge off of the Horde's lead in quests. If I want to watch greed like that, I'll turn on the news.