As Myke said very little is real on reality TV. With that said I think it's easy to point out the top 6 that will make it to the combined kitchen. Ramsey knows who is top 6 are going to be so to the producers and editors of the show. If things hold true to the past, and no crazy slip up, like Kevin stabbing Ramsey in the face, here is who I believe will be in the top 6 and 2 possible wild cards to snake in.
I am going with 3 Women and 3 Men one of the wild cards might make it 4 - 2 but 3 -3 seems to be the split.
Women
Tek
Suzanne
Ariel
Wildcard: Sabrina
Men
Kevin
Jimmie
Robert
Wildcard: Van
After the top 6 its anybody's game. I do believe that's when Ramsey starts to give a shit and its going to take more then being leader early or a little talent to move on.
At this point I see: Kevin, Jimmie, and Ariel as the Top 3. My mind might change later.