Well, there goes my favourite driver of the current V6 Turbo era. Makes sense for Rosberg really, has his young family to consider and performing at a level around Hamilton clearly takes it toll on him. Ocon has a deal with Force India and Wehrlein has Wolff's backing, so we'll probably see Hamilton/Wehrlein next year with Ocon being added once Hamilton moves on from Merc.
I guess I'll be rooting for Alonso, Hulkenberg, Raikkonen, Ricciardo and Vandoorne next year. Going to miss Rosberg, Button and Massa.