My best guess as to what the "big announcement" is is as good as yours.
The idea of re-branding has been bandied about mostly in the speculative sense. If you're looking for links, here goes: There's themysterious big announcement planned for this Wednesday,* MLS Rumors -- trust at your own risk -- has some "information" on domain registrations for "sportingkcgear.com," Down The Byline was anonymously emailed a "new" Sporting KC logo and there's a SportingKC Twitter account
that may or may not be official.*Notice the name of the website: BignewsforKC.com.
Now, it could very well be the public debut of new designated player Omar Bravo. (Of course, you could argue that if that were the case, they'd actually advertise that a little bit to get a bigger audience.)
You can feel free to chase these things down if you'd like. I'm fairly certain that there will be details to come. And, until I hear something more concrete than the clues that have been leaked, The Full 90 won't have any more on the issue.**I'm not meaning to purposefully obfuscate the issue, but I feel I have nothing more to add to the conversation at this point. After this article and this one. I also always wanted to have the phrase "purposefully obfuscate" under my byline.
This sort of shrouded mist of mystery has hung over the team since August when the topic of re-branding was first floated. It can hang for two more days.
However... if you want to do some reading, I highly suggest three very interesting blog posts.
• James Starritt at KCWFans.com shareshis thoughts on the new logo and re-branding.
• Andy Edwards at The Daily Wizhas some thoughts on the rules of re-branding.