Available now, the latest issue of UK-based magazine Rock Candy features an examination of the '80s YesWest oeuvre, 90125 and Big Generator - Jon and Trevor are interviewed by well-known (to us) journalist Malcolm Dome. The interview with Trevor is fairly in-depth as regards the events of Trevor's development deal with Geffen and how that ultimately led to his joining up with Chris and Alan and thus to the revamping of Yes and the creation of those aforementioned albums. There's a few details I don't believe I'd heard/read before, such as Mutt Lange being the one to recommend Trevor as a touring musician for Foreigner (though it certainly makes sense, given that Lange had produced their latest album of that time, 4).
Also of note: in the interview with Jon he discussed the "lost" documentary of the 9012Live tour, which we all know actually does exist as Access All Areas on the DVD release of the concert film. Jon takes credit for the idea entire, although I've been given to understand (after my remarks in the episode of Have You SEEN This? regarding the film) that Chris was responsible for choosing Steven Soderbergh based on a short he had created which Soderbergh was using as an audition reel at the time.