I think the questions you are asking in the 5th paragraph are the right ones and honest answers will lead you to the right tree. I think we need to be asking those questions constantly to make sure we are not letting our lives go off on a tangent. For what it’s worth, you might find it valuable to blog about your new area of expertise (digital publishing and social media) but if your passion is magazines you might find a space where the two intersect (or should or shouldn’t intersect) and talk about that–is social media and digital publishing the end of magazines? Will magazines evolve into a boutique industry with a different purpose, etc.

As far as what you keep or changing the look, that probably is best decided when you figure out what you want to be doing with it. But I think what you already have gives you a lot of credibility so don’t just throw it away.

Best of luck and I look forward to seeing what comes out of your deliberations.