About the teams, someone posted a more detailed description on the forum at tv.com. I don't know if it's accurate, though:
Team 1: A curly redhead is pictured, however her partner is not. Rumoured to be a guy and this is the newlywed or engaged couple.
Team 2:Young brunette females could be sisters and could use flirting as a weapon.
Team 3:These people are probably Amish. The man is bearded and the woman has puffy blonde hair. They are middle aged. Prtobably a married couple.They dressed very odd.
Team 4:This team could have a racially mixed male and a African American Female. They look like Frank/Margarita.
Could be a strong team. Probably a dating couple.
Team 5:an all male team. One male is Italian. Rumoured they are friends and one is strait and one is Gay. The First ever gay/strait friend both the same gender.
Team 6:Very tall man and very short blonde Female. He looks older than her and could be a father/daughter team or a way older dating team like Ray/Deana
Team 7:The Granny team like Peggy/Claire. However they look about 50. They could be the first lezz couple
Team 8:An all-male team however not too strong.
Team 9:An country middle age couple. Probably just a bit older than Debra/Steve.
Team 10: Young Asian females. First time we have an all asian team.
Team 11: The nerds. Rumoured than the Female in this group could be Angie from Survivor Palau