There is no doubt that Admiral Zafar Mahmood Abbasi was one of the best naval chiefs we have had and he made tremendous contribution in shaping the future of the navy, more so than many of his predecessors. The last CNS Admiral Zakaullah also did a lot but Admiral Abbassi took it to a whole new level. Both deserve our thanks and appreciation for their efforts. And one hopes that this trend continues with Admiral Amjad Niazi as well.
Coming to the items pointed out in Admiral Abbasi's speech he mentioned
"fleet size of 50+ ships with 20 major ships being envisioned". Now Combine this with the statements that follow.
He also clearly mentioned that 4 MILGEM ships will join navy and the
"5th Ship presently under design phase will Insha'Allah be Pakistan's first Jinnah class frigate". Aswell he mentioned that after 2x2300 ton corevettes, 6
additional ships with larger tonnage are being contracted
as a follow-up. This clearly means he's talking about 6 more heavier corvettes and not destroyers. And these are probably from Damen aswell given the context of his comments.
This leads me to believe that the "20 major ships" that are being talked about are as follows,
1. 4 x F22-P. (existing)
2. 4 x Type-054 (coming)
3. 4 x MILGEM (coming)
4. 2 x 2300Ton Damen Ships (Coming)
5. 6 x heavier Damen Ships (Planned)
That's a total of 20.
So where does the 5th Milgem/Jinnah class ship fit then? And we can't just be building only one of these, so surely there will be more. As to that, I think that since the first 4 milgem/Ada will join by 2025 and the Jinnah class is still in design phase it could take some time and would presumably be something we see post 2025 and maybe further. In that time-frame they could possibly be replacing the F-22P ships.
Frankly, I don't see any destroyers in this picture.
Perhaps the PN does have some plans regarding those but personally I think that A) Admiral Abbasi didn't refer to those and B) These could be a longer term plan and maybe we'll find out more in the future.
Here's looking forward to Admiral Niazi's farewell speech.