Naturally you have a few "american" choices. Use Finn's editor to make this a new game each year -- which is still better than Madden 06 right now. I have a feeling Madden 07 on Xbox360 may finally have the upper hand next year though.
Or you could wait until 2K Sports releases their next football game. If the legends game doesn't pan out, they will simply take all the work they did for that game and ship out a generic roster.
They aren't stupid. They are a business. They know what they are doing even if a large majority of people don't understand it.