Wand 0.3 will be the first version that supports Python 3.
The branch name for it will be python3.
Wand 0.3 will support Jython 2.7+. Jython 2.7 is (June 2012) currently under alpha release, and Wand has been tested on it and fixed incompatible things.
It has been developed in the branch jython.
ImageMagick itself can read/write EXIF through GetMagickInfo() function. Wand 0.3 will make a binding for it.
Its branch name will be exif.
Wand 0.3 will be able to deal with layers of an image.
Its branch name will be layer.