SPOILERS!!
THE COUPLES
Will & Katee
Joshua & Courtney
Gev & Chelsie
Twitch & Comfort (for an explanation on what ze heck Comfort is doing on this list, see my post a few down)
Mark & Kherington
ALSO:
There are 3 group routines. One all girls, one all guys and one top 10 bollywood!
...and my guess is barely any behind the scenes footage. :( :(
I'll update this as soon as I find out more.
source: idolforums