I don't really think you have to worry about Mark. The judges may show no mercy, or they may. But then there's the fans and assuming the producers don't try to manipulate the results he probably stands a pretty good chance of staying out of the KO territory. Anna is a pretty popular pro and many were happy she was back and got past the second elimination, which was as familiar to her as her husband getting booted first. Mark also seems to be doing well in most fan polls that I've seen. Now, if there is no producer tinkering then vote #1 has let me down 2 weeks in a row, but Mark has pretty much been in 3rd or 4th on the fan poll there. Anna's already done a samba this season.
With the KO dance, are all having to do a different one? I was wondering about that because I haven't seen anything confirmed. I don't know how team paso will do, as I think they got a crappy choice of music, but I had already given the edge to Team Tango without knowing Lacey wouldn't be there. It's not that I hate Mark, I just haven't found him very interesting to watch, and for me Lacey always seems to be about Lacey. But I enjoyed their jitterbug very much last week, which will probably be one of my top 5 favorite dances of the season. And Mark would currently be in my top 3 simply because I'd rather see him win than nearly everyone else left.
My prediction for this week is Michael and either Aaron or Kelly. I don't think the salsa is going to be a strong dance for her, and even being with Team Tango may not save her. There could be a shocker but every season with the team dances, someone from the losing side gets ousted. And they may consider Aaron a shocker, who knows.