According to Thecustard website, the lineup has changed a bit, still there are slight changes. In their write up of the listings for 10-16 January, they have these 13 names as competing for DOI. I would think that this could be the final line up as they gather their names from all the TV listings sites. Each gender has one difference.
For the men, you have Quinn, Carty, Le Saux, Hanley, Edwards , and Underwood, but instead of Hipgrave, you have Donal McIntyre
For the women, you still have Bissix, Pallett, Messenger, Taylor and Salmon, but instead of Metcalfe you have Coleen Nolan. (This I can imagine as I had read that Metcalfe was replaced by Bissix)
I think there is some truth to this line-up.