Drmike, I appreciate that you are playing it safe about whether WP.com has actually been blocked in China or not. However, I'm not sure what official word it is that you are waiting for. Do you mean an official word from WordPress.com, or are you expecting a headline from a respected and well-known media source?
As to the media, I wouldn't expect much. Websites get blocked and unblocked in China all the time. If a MAJOR foreign website suddenly got blocked, like the main Google search engine, http://www.google.com/ncr , we'd hear about it within a few days in most major news sources, but when smaller websites get blocked, especially websites offering blogging services, you hear very little about it in the media. For instance, Blogger was unblocked for a while in November and December and then got reblocked in early January. Typepad had been blocked for a while but got unblocked again this January and is presently accessible from within China. This all happens almost without a peep from major news sources like CNN.
As to Wikipedia making no mention of the WP.com block, well, there are thousands of websites being blocked by the Chinese government. Is someone going to go and systematically list all these websites on Wikipedia and then keep that list up to date? Currently there's no list like that on Wikipedia, http://en.wikipedia.org/wiki/Internet_censorship_in_China, as far as I can see. In fact, the Wikipedia article on the subject lists very few individual websites being blocked in China, and rather groups together the kinds of websites that get blocked in China. The Wikipedia article further notes that Wikipedia itself also happens to be blocked in China.
I pointed out a few different websites in the first post in this thread, including my own, that indicate that WordPress.com is currently being blocked in China. Here are some results from Technorati using the terms 'wordpress.com' and '封' (pronounced 'feng' - the Chinese term for a blocked website). They are all in Chinese, so if you can't read Chinese you may want to feed the URLs through the Google translator or AltaVista's BabelFish.
Note: WordPress.org is not currently blocked in China. I access blocked sites from within China via Tor and Anonymouse.org.