Helping those who can't help themselves

So I have this friend who blogs, too (but not as well, so I don't feel threatened; and yes, I had her approve this before I added that bit). Her blog is pretty, and has nice pictures. Let's say it's about shuffleboard. Every time she sees a new shuffleboard, um, complex, she posts about it. Or if she learns a new set of shuffleboard rules, she writes something about those. She's developed quite a following, and it's a great way for her to be creative and to share her narrow expertise with others. And maybe she's not a she anyway. Maybe she's a guy. I digress, but confidentiality is very important to my work here. She's now faced with a dilemma: her blog is quite subject-specific (shuffleboard, remember?) but in the meantime her life is going in a dramatically different direction. For instance, let's say she has discovered that a mutant Barbie doll has been growing out of her pelvis for some time and it is now showing, so she's going to live in Transylvania for the foreseeable future, making a living selling soap (and frankly, that's not that far off the mark). Anyhoo. Her (and really, she kind of looks like a guy) question to me this weekend: can she just keep blogging about shuffleboard, not saying anything about the Barbie/Transylvania angle, or will her readers know something's up by the tone of her posts? And if she does acknowledge this major life change, how does she do so artfully and gracefully in a blog that has only been about shuffleboard (post after relentless post)? I thought, since my readers are way smarter than her readers (who are, I assume, octogenarians and their fetishists in Naples), we could offer up some advice as she faces this new chapter. Dear Readers, droplets of wisdom from your collective sweaty brow?