You might have already noticed (if not, you will, very very soon) that the FSF has released the first draft of the forthcoming GNU General Public License 3. You can leave comments on the license or help to populate the wiki, if you're inclined.
I think the Rationale Document will be very interesting to read (for me, at least).
I'll leave it to more competent people to comment on the pros and cons of the changes of this new version... I hope that in the end (after a few more months of reviews etc.) we will have a fine new version of the GPL which will suit the majority of the Free Software world very well.