I can really see the mountain group going. I firmly believe that next week will be a N-E leg, cause we're due for one, and then in two weeks, it'll either be Meredith/Gretchen or Ron/Kelly.
Also, I think others have pointed this out, but on the CBS web site, they have removed all of the backgrounds from the photos. Looks like they wised up!
The pics on the home page have the backgrounds removed, but they are still there here: http://www.cbs.com/primetime/amazing_race7/teams/