According to Polish Defence24 site, Polish F-16C/D Block 52+ Jastrząb MRCA are bound to receive an upgrade.
Upgrade packages are already available today, which could be used to extend the lifecycles of the Polish Vipers, from 8 to 12 thousand flight hours (an upgrade as such has been made available within the F-16 SLEP programme). Expansion of the combat capability though should be the primary focus here. The latter is being pursued by numerous states that acquire the comprehensive F-16V upgrade (complete/partial). It envisages that the F-16s become compliant with the Block 70/72 standard.
The main elements of the upgrade include the integration of an AESA radar, improved avionics, better situational awareness, and a net-centric communications suite that allows for establishing of data exchange for instance with the F-35. Jastrząb aircraft modified in the manner described above could become a perfect wingman for the F-35, and have capabilities matching the ones of the brand new F-16s that Poland is willing to procure. Poland would probably procure brand-new Vipers – there are limited options available when it comes to the second-hand F-16 market. It should be noted that the Polish F-16 fleet has already undergone a minor upgrade, including the upgrade of the software (M6.5), and integration of the JASSM/JASSM-ER missiles.