All this talk about Poland leaving the EU is premature - the Polish population leans far more to staying in the EU than leaving because the are one of the biggest beneficiaries for EU investment - something the EU know only too well and are busy briefing against the anti-EU factions in the Polish govt.
The EU is fully aware that it has/had big problems with Poland, Hungary and Italy and less so in the Czech Republic and Austria whose leaders were not fully EU dependable however, the Austrian Pres and Czech PM have both just been ousted through fraud allegations leaving EU fanatics in their place. whilst the EU has managed through all sorts of sheenanigans and financial incentives to install an unelected Italian President, Draghi - an EU insider and fanatic and is in the process of picking off Poland which will eave Hungary out on a limb.
These events are not just happening in isolation rather, the EU and its operatives in those countries are all very coordinated and active, much like the secretive movements and financiers that did everything to undercut/cancel Brexit in this country. The only way that popular support to leave the EU will arise in Poland is if the EU push it too far but you can bet everything is being carefully stage managed behind the scenes.
Of greater concern to the EU is Eurozone debt mountain arising from never ending QE and the fact that it hasn't produced the desired stimulus in the zone - couple that with no effective German govt and with macron coming under massive pressure in next years elections
With Poland’s turbulent, disjointed history - its very existence dependent upon its neighbours – it might be fair to say that Poland would be hesitant to abandon ANY status quo, with which it was familiar . . . especially, even, that which it has become dependent upon, over the last 25 years.
It is suggested that no real progress will be made with Poland’s situation, until an alternative future is defined, suggested, outside of the EU.
Regrettably, I have not (yet) seen any evidence of this .