I don't think Adelina will be back. She hasn't committed to a full season since 2013-14 and the depth of talent in Russia next year will be even more incredible than this season.
To me she should do senior b competitions, and then comeback seriously (maybe even with a new coach, let's say Inna Goncharenko) after 2018 and hoping for a Tuktamysheva moment, cause at the beginning of a new Olympic cycle most of the skaters aren't ready to compete at their best.
