The Turks are working on their own 10-ton helicopter. I think they'll adapt that design for naval ops too.
It's a long-term bet, but I'm all ears for holding these things off for the sake of getting the latest design, and get our industry some serious work. If not the Turks, select an existing design, but with offsets and co-production.
But this would've worked out better if we had back-loaded frigates to the 2030s and, instead, focused on cutting-edge submarines and lower-cost OPVs until then. So, get the subs for A2/AD, and OPVs to police our seas. I think OPVs would've been fine with AW139s for SAR/ASW (i.e., standardize with the PAF and PA).
But from 2030, we can start inducting MILGEM-Js with a 10-ton helicopter, and in parallel, have the PA and PAF also start inducting the 10-ton helicopter. Between the MoD and MoI, Pakistan could need 200 such helicopters, easily.