It is being reported (Eurosport) that Wiliams has agreed to a 12million pound buyout of Bottas from Ferrari and the finn is set to replace kimi at Ferrari for 2016

while i can somewhat understand releasing kimi ( he never felt comfortable in his return for whatever reason) The move for bottas makes sense for ferrari but not so much for bottas. If there is anything his teammate could have told him was to warn him about the dangers of taking a job to be firmly a #2 driver. Bottas is a rising star and if anything should have stayed at williams to become "the man" then waited to see how the cars and market shakes out in 2017. Going to ferrari now means being compromised for vettel and being treated as 2nd fiddle.
As for Kimi. I see 2 options, either retirement or a move to Force India