Well we will find out on Sunday. Why Sunday? Because the EU elections are held over 4 days.
Now what I find disturbing about this is that the UK will have it's exit polls, have discussed them and had a whole political furore about it, 3 days before the vast majority of the EU votes. Allowing the voters in these countries to change their mind or even vote tactically to limit the impact of the votes in the first countries.
Worth reading the EU Site on it.