Keep James as a dancer (although I've loved his presenting) as hopefully now people have stopped demonising him so much he might get to go a bit further in the competition.
Reduce to 14 couples - 16 is just too many. Unless any pros are planning to leave then I would get rid of Anton (he could have Bruce's job) as he's shown that even with a decent partner he hasn't got enough patience with the Latin to help someone get all the way. The female pros are generally good but if I had to let one go I guess it would be Aliona as she has made the least impression on me of the new pros.
If Alesha decides not to come back as a judge, ask Arlene back or get Karen in.
Find some way, ANY WAY, of guaranteeing a 3 person final, whatever happens. It's not a rocket science, as Ola would say.