For me Cal's season and probably career depends on two things this year. 1) His performance compared to the other Yamaha guys. Yamaha have arguably the best lineup accross their 4 bikes, Spies hasn't proven himself to be an alien yet but he has shown he can win and Dovi's credentials are pretty strong too. Cal has to hold his own against these guys at least, and preferably out score one of them come the end of the season. This means being quick everywhere, not getting hurt and being right there to pick up the podiums when one of the top 3 is not at their best for whatever reason.
2) Closely tied in with the first point, Cal is going to have to stay grounded with the increase in attention he will get, not just in the UK where a few more good results will have the pressure pouring on and people calling him our best hope for 30 years. It is I suppose about managing expectations, of himself, his team, Yamaha, the racig community and the fans. For me if he can do this, his performance will be enough to keep him in a good position next year