There was an optional clause (+2) in the contract with Rheinland Air Service which is currently converting the second ATR-72 into MPA.
So, PN will have 4x ATR-72 MPA's.
F-22P's didn't come with the best radars, which means they are dependent on the Z-9EC for provision of OTH targeting for C-802A anti-ship missiles.
That doesn't leave any Z-9EC for PN Ada corvettes & Jinnah class frigates. I believe no additional helicopters of this type are being purchased.
PN wants larger multi-mission helicopters, and in this regard, Leonardo is pushing the AW159 Wildcat.