We now seem to be going for local manufacturing or towards a. New tank based on VT4.
The VT-4 design is just an evolution of the Al-Khalid/VT-1 design, which itself was an evolution of the Type 90II design, which was an evolution of the Type 85 design. You can see how they just build upon each other. The Al-Khalid-2, which is currently under development, will take a similar route, it will build upon the AK-1 design just like the VT-4 did.
Unlike the 90s Pakistan now has the capability to design a tank on their own based on this platform. So they might make one more specifically suited to their requirements and needs, something that can’t be perfectly accomplished with an off the shelf product like a VT-4. It will however use technologies from the VT-4, as well as from Ukraine and Europe, though most of the systems Pakistan has the capability to make on its own.
Powerpacks are obviously not going to be local, ToT at most, Chinese or newer Ukrainian ones (I made a detailed comparison in the Al-Khalid thread of both). Both would give a massive mobility boost. The Chinese one makes better power but Ukrainian ones mean less redesigning and maybe better reliability. VT-4P has extremely impressive mobility, it’s engine in the AK-2 would be great, so would the Ukrainian 6TD-3.
The biggest upgrade to the Al-Khalid-2 would be a CITV, it’s an absolute must for it, otherwise I refuse to call it a good upgrade. Even if it’s a second generation thermal.
Another thing that can be improved drastically is the armor and ERA, protection is not the VT4s strongest point, it’s good, but not good like the Oplot M or the T90MS, especially on the sides. Both AK and VT4 have no added side protection. On that note an Active protection system (GL-5 or Ukrainian Zaslon) are also going to be a must for both VT-4 and AK-2 in the future.
I believe Pakistan can make AK-2 much better Protected than VT-4 by using Ukrainian armor tech and ERA (Ukrainian Duplet ERA is some of the best in the world.) It would need a redesigned turret though.
BMS Software and C4I systems used in the AK can be improved, This is the strongest point of the VT-4. AK-2 absolutely needs a proper Laser warning receiver and detection suite like in the VT4, and maybe also camera suite like the VT-4. Auto-bore sight system is another good addition from the VT-4.
Ammo storage can also be improved, bustle or external storage with blast doors as adopted in the T90MS would be a big boost to survivability, but that isn’t absolutely necessary as the current storage is decently armored.
An RWS is also a possible addition, but wouldn’t be absolutely necessary considering the MG is already remote operated.
The FCS/GCS, Auto-loader, thermals, firepower, MRS and many other systems on the AK-1 are already very good and don’t need upgrades.
Maybe they can go for local thermal sights this time. Pakistan has the capability to make those, it remains to be seen Wether they can match the ones from SAGEM, which are made locally too. But AK has third gen thermals already, which is as good as they get, so they’re not a necessary upgrade.