Jason Cox wrote:

No you wont, they'll probaly have it change over time so a PC that was rated, lets say 4.0 now, will be rated at 2.0 or 2.5 in a few years.

I seem to recall a PDC talk (possibly Raymond Chen's) that stated this was not the case. The values will simply increase over time, otherwise vendors would have to re-label their packages periodically.