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Neil James: Jenson Button will be the most high-profile. Losing his father, John, was a huge blow. He is also 34, recently got engaged, has a world championship and isn't likely to win another. Kevin Magnussen is probably going to end the season on top, so Button may call it a day. Also Marcus Ericsson, Kamui Kobayashi, Jean-Eric Vergne and Max Chilton.
Mark Patterson: I think Button will stay, which will mean that there will be no high-profile exits. Max Chilton is lucky to be in a drive for another year at Marussia, while it seems like Daniil Kvyat's first-chance has come too early.
Oliver Harden: Jenson Button will retire. Esteban Gutierrez will succumb to one of the queue of drivers lining up to replace him at Sauber. Toro Rosso's patience with Jean-Eric Vergne will run out. Marcus Ericsson, Kamui Kobayashi and Max Chilton, meanwhile, will all fall off the radar.
Matthew Walthert: Jean-Eric Vergne. As I have pointed out before, Toro Rosso has never kept a driver more than three seasons. This will be Vergne's third in Faenza. Other drivers are more deserving of a move up the grid (Hulkenberg and Bianchi, for example), so unless the Frenchman dazzles this year, it could be his last in F1.
Fraser Masefield: Esteban Gutierrez, Adrian Sutil and Daniil Kvyat.