Yes, they did just announce the new movie but, Disney decided to change the movie up a little. The NEW title for Tinkerbell and the Mysterious Winter Woods is now, Secret of the Wings.
The movie has to do with Tinkerbell venturing into the Winter Woods to find out the secret of fairy wings. Tink meets Periwinkle (vocied by Anna Sophia Robb) and she, Periwinkle, and her other friends go into the winter woods to try to find the answer.
The original release date for the movie was Winter 2011 but, because the Pixie Hollow Games pushed it back, the date was changed to Fall 2012.
The plot of the movie has not been changed, just the name.
So, are you ready for this new Disney Movie?
To see more, you can visit this website: http://en.wikipedia.org/wiki/Tinker_Bell:_Secret_of_the_Wings
Here is the trailer for Tinkerbell and the Mysterious Winter Woods: