I think that's quite an interesting idea
It would mean that each group would get to know each other well, and then the integration would hopefully curtail the pairing off we've seen this year. it got very tedious just seeing groups of two people all touchy feely.
It might even stop the bitchiness that we've had this year from the girls. i don't think this group of girls has really tried to get to know each other because they automatically selected their male partner straight away and didn't bother to try and bond with members of their own sex.
I don't think it will happen, and to be honest I just want it to go back to the way it was last year but it's certainly a good thought!