So Daniel Craig seems to be back tracking comments on Bond.
I"d say there is a most positive chance he'll return for at least 2 more. Even though Spectre dipped it still did really good business, and the producers probably don't want to risk a newbie anyway soon that will lower those kind of numbers. My prediction is 2018-2019 Craig will return for Bond.
http://www.huffingtonpost.com/entry/daniel-craig-bond-miss-terribly_us_57fe36bee4b044be30163bd7