rnm, if the SEC pulls that foolish move, there should at least be a little warning. Check the IBOX for the link. While it is not guaranteed that the we would get the warning, it is soemthing to keep a close eye on.
I wouldhope they would not do that here, becasue it would be a very clear instance of harming shareholders and protecting MM's. Problem is, you just never know. Make sure you have profits and free shares, then if the worst does happen, you already have cash in your pocket, so the wait to trade again will be far easier.