This is actually a very fun question to answer. There are a number of things that we can say. However, the most important point to make is the idea of globalization and the intermixing of cultures. All of this brings the world together and makes the economy stronger. However what sometimes gets overlooked is that there is also an effect in the culinary world.
In light of this point, we can say culinary has changed most significantly in the fusion of various cultures. Ingredients from all over the world come together and create many new dishes.
Another point worth mentioning is the new health kick and organic push in the last ten years. Now people are (more than ever) aware of the importance of eating well. I suspect this trend will not go away anytime soon.