As you are aware that Google has made secure search default for everyone which means that unfortunately you will not be able to see brand or non-brand keyword data in Analytics. We have known about this since October 2011 when Google first introduced us to secured search and slowly we have seen a growth in Not Provided keyword data.
I have been working on a few strategies to figure out what other data we can use to assist make better decisions when it comes to optimizing websites.
I did a presentation to a SEO meetup and below is the presentation from it.
Testing Plugin –