Either Google will pay... or they won't. If they won't, nobody can find European news articles, and news traffic drops, and news sites get financially hurt (just like it's played out several times in the past). Then they'll get the idea that the law was a stupid idea, and work to get it quickly changed.

If I understand correctly, which way this goes is completely at Google's discretion. And Google hasn't shown inclination to cooperate with such schemes in the past...