Personally, I think the prudent thing is to remove links when the law goes into effect, but to keep your sites up. If something changes, you can be nimble and re-enable quickly.
Once the bill actually becomes law, the legal eagles will come out in full force, and analyze things to death. I think we need to keep our eyes on the big players (888, PartyGaming, etc.) to see what they do and what they say. You can be that their legal team will remain very active, and that they were advised, to be on the safe side, to “abide by the law”, in the short-term.
I will not re-enable anything, until credible legal counsel says that I can, the law is challenged in the courts and reversed, or the WTO comes after the U.S. (not likely that they have the muscle to) and wins.
Until then, I’m working on my next affiliate venture — selling “Republicans Suck” bumper stickers.