It was - as expected - the theme of immigration: for 63% of voters in Upper Austria this was deciding factor in their vote, according to Peter Hajek.Source
This means the FPO [Freedom Party] come in second to the mainstream conservative party who have been utterly dominant in that region for a long time. So the result will produce no actual change of government. Its significance lies in what it might portend for the future of Austrian, and hopefully European, politics: a dramatic increase in support for European patriot parties (the so-called "far-right") in response to the immigrationist lunacy our elites are inflicting on us. Dispiriting though it seemed at first, this 'migrant crisis' may actually be the shock we needed to bring the current system down.