Caterham have been sold, Sauber is still hanging on, although I'm not sure if they are still chasing Russian money. They are registered in Swtizerland which is not adhering to the EU fiscal embargo of Russia so they are the best team in a position to take the Ruskie Rouble. I have a feeling Ferrari may be looking for a couple of drivers next year, Honda are said to be wanting a marque name, and Ron Dennis has said he would happily accept Alonso back. There's also the situation if Mercedes support Rosberg winning the title, may make Hamilton consider a move back to McLaren. You also have to factor in what Vettel is going to do with Newey taking less of a role in the design of the Red Bull car and his lack of success compared to Riccardo.