intrade

If the changes to the healthcare cover go ahead, my wife and I will lose our Carte Vitale at the end of March. However, since we moved to France in July 2003, in July 2008 we will have been resident here for five years. Does the new law apply to those who have been here for 5+ years? I have been told that it doesn't and that those residents will be able to retain their cover. If this is the case, would I need to take private insurance for just 4 months and then rejoin the CMU system, starting to pay my cotisations again?