I have some bad news for you: American Express will most likely say that your points are gone. They will tell you that you should have transferred the points out of your account to another travel program.
Right now, AMEX Membership Rewards is jerking me around with respect to 40,000 points I earned on corporate business in 2000 and 2001. I am considering having an attorney write a strongly worded letter on my behalf.
Best of luck -
JTB