Overall, the PN said it wants around 20 'major surface vessels.'
Based on current ships and plans -- i.e., 4 F-22P, 4 Type 054A/P, and 4 MILGEM -- it has around 12 on the roadmap.
It's possible they could fill out the remaining 6 ships with the Jinnah-class FFG, but bear in mind, from 2030...