So far it seems like a rather big rise in voter turnout in the Netherlands with 43 % voting by 15.45. In comparison it was 37 % in 2012. So far it pretty much follows the numbers from the 2006 election, where the turnout ended at 80.40 %.
Often a high turnout is bad news for right wing populists, but it's never safe to say that it will be the same here, as PVV may just as well manage to get more people out to vote for them. It could mean a bit more with knowledge about more local turnouts, but the only thing I've read is that the turnout in Amsterdam is high, which doesn't seem too great for PVV.
But as we saw a couple of times last year, it's dangerous to analyze too much!