I personally don't think the Motu Proprio will be the "Magic Bullet" that many others seem to think it will be.
Like my man in the raft, don't get me wrong, it's more than welcome. But there are still so many sharks out there. I wonder how long before they'd chew this raft up. (Assuming of course, the raft is ever thrown out there)
Father Z has an excellent piece on how to conduct ourselves like gentlemen when and if the MP comes: http://wdtprs.com/blog/2007/06/fr-zs-5-rules-of-engagement-for-when-and-if-the-motu-proprio-comes/