Hi - the full line-up is:
Karen Hauer
Joanne Clifton (newbie)
Natalie Lowe (usually preceded by 'the divine...')
Ola Jordan
Iveta Lukosuite
Kristina Rhianoff
Aliona Vilani
Janette Manrara
Brendan Cole
Anton du Beke
Alijaz Skorjanec
Trent Whiddon (in for Robin)
Tristan MacManus (newbie ;-))
Kevin Clifton
Pasha Kovalev
I have no idea why Anton is indestructible...
Very sorry to lose Anya after only one series, but if they were determined to get Joanne, someone had to go. It may have been her choice, of course, but she's quiet and reserved and so was her celeb last time, so perhaps she just didn't make enough impact. They've made a point of saying she'll be involved with choreography, so maybe they are keeping her close for future seasons.
She's one of my favorites, but I'm surprised they kept Aliona. Perhaps there was a deal done last year when she stepped in last minute, after having been unceremoniously dumped, and did duffer-duty with good grace. Janette is also a surprise (comparing to Anya). She was unlucky with her celeb last time and didn't make the best impression, but maybe she comes as a package with Aljaz.
I'm still quietly weeping at the loss of Artem (not even the lovely Tristan can compensate completely), but I wish him well on DwtS and hope he gets a decent partner.