This isn't much, but here's something that was just posted on an Alice in Wonderland movie fansite. If you want to keep up with as much Alice in Wonderland movie-related news as possible, I have three pretty good websites to recommend (even though I doubt they'll have any updates for the next couple of weeks).
http://www.aliceinwonderlandmovie.org
http://www.timburtoncollective.com/l...onderland.html
http://mia-wasikowska.net
The schedule for Disney's D23 Expo says that new footage of Alice in Wonderland (among other upcoming Disney films) will be shown on September 11th at 11:00 AM. I'm sure we can probably expect that same footage to hit the internet shortly after that.