I share the thoughts of quite a few on here.
Robin would be of no loss to me, even though he seems to be a sound guy. But choreography wise he's rather forgetable and, personality wise, sadly the same. Anita and Patsy, while not great dancers, weren't bad or even average dancers so I'm not sure how to assess his achievements with them. Maybe a better celeb for him next year would make his place (and importance) in this show more clearer.
As for the Anton and Erin debate, I doubt they'll go, they probably now serve as the older Pros for the shows next older/joke celebs. I would like to be proved wrong on this thought though.
I don't think the three girls Natalie, Aliona and Katya will be let go, at least not yet anyway. Natalie and Aliona have had two good celeb dancers so have been able to demonstrate how good their choreography skills are and so will be most likely be kept. And I just hope Katya gets a good celeb next year (if she's back) because she's now the only Pro to have not had a good celeb yet (as Kristina finally got her first good celeb this year). I think the main thing that has kept Katya in this and last year is her character which is a mix of being fesity, sexy, strict and ice queen-ish all rolled into one. I think also her comical relationship with Gavin was seen as a plus tick for her (despite the dancing itself with Gav not being of any memorably quality). She has certainly shown she can deal with average dancing celebs despite having the challenge to temper her mood with some of them (esp with the likes of lazy Phil Tuffers).
As for James Jordan, well, he's the headline maker really isn't he for this show, at least that seems to have been his role over the last few years. So, I have no idea if he would be kept in for that aspect or got rid of.. (for that same aspect). With Ola I can't tell if she'd be still wanted by the producers or not but, either way, she'll go wherever her husband goes and I can't see her sticking around the show if he was got rid of. Brendan has (mainly) mellowed since he got married so maybe the shows producers are liking his nicer side being shown to the audience (as it kind of gives him a new character dimension from before in a way). And I also get the impression that he is a iconic figure for SCD, Pro wise (?), so would he really be got rid of (?).
I think its time Flavia and Vincent got some good partners again! She did well with Russell for a comical year but would be nice to see her and Vinnie back to choreographing nice routines (which they can dance full out in themseles in) next year if they're asked back (as they're both good at choreographing too). Pasha and Artem will likely stay as they have both done well with their partners this year (and Artem obv last year) but it would be interesting to see them both with the type of partners that Anton has to contend with year in year out.