The Dutch system is so consensus based that it is nearly impossible for something interesting to happen with the elections. The big "upset" is that Geert Wilders did not win as much as expected, however, most of the parties shifted right quite a fair bit in the year leading up to the election when it comes to immigration and integration, especially Mark Rutte's VVD. The realization that mass-immigration from the Middle-East is not all sunshine and roses has gained ground even in the mainstream parties, so that is good. For me the most important change is that two very progressive parties, namely GroenLinks and D66, both did very well.
A parliament that is less conservative than before, aware of immigration issues, but without Wilders in government. I consider this to have been a nice election.