Pt91 will soon retire and all of them will be sent to ukraine, pt-16 doesn’t exist (it was only modernization prototype). Leopards as soon as all m1 and k2 arrive will be retired or in reserve. Also m1a1 fep are most likely to be modernised to the m1a2 sepv3. In conclusion the Polish land forces will have “heavy” tank battalions with m1a2 sepv3 supported by new heavy ifv based on k9 chassis with zssw 30 turret and “medium” tank battalions with k2pl supported by light amphibious ifv borsuk.