Thanks everyone for your participation and input...
I found out from our local dealer that we might not receive the first 2014 M5 before November/December 2013, and they have not received confirmation yet about what would be changing for sure and what not.
By looking at some other BMW models that have been face-lifted recently, such as the F01 7-Seires and the X6, they both have received minor touches after being face-lifted. Hence, I would prefer enjoying the ride in a lovely M5 that I configure rather than waiting for another 5-6 months...
Based on the above, I have decided to go ahead and order now
With this, I should finalize my M5 order at the dealer soon. The tough part now is waiting until it arrives !!