The PiS loses, and Braun's Confederate and fascists gain.

If I were to analyse this in terms of stock exchange – technically and fundamentalally – I would bet on contracts that the Law and Justice will no longer exceed 30%, and the Confederacy, together with Braun, will keep a lasting increase above that level.
However, I am not certain that this would not be classical "changed the uncle of an axe for a stick".

Confederation and Braun are Economic liberal, which may be conducive to the economy, but systematically represent something in form modern version of classical fascism from the interwar period – especially in the Italian variant.

According to fresh CBOS data, the timetable would be as follows:

• KO – 192

• PiS – 140

• Confederation – 80

• Korona Polska (Braun) – 48

Total PiS + Confederate + Korona Polska = 268 mandates.

Formally it gives most, but politically it would be an highly unstable mixture.