IRIN should stop with Mowj class and move to IRGCN's Soleimani class. They are far more modern, agile and with much more fire power than Mowj. An enlarged Soleimani for IRIN can be much more useful than these conventional Mowjs.
They are different ships for different missions. Sure, they are potentially more armed and modern, but then I would imagine them having great difficulty navigating the challenging blue waters, or almost impossible to accompany and escort the motherships Makran, Kordestan, or the aircraft carrier Bagheri across the oceans, a mission the Mowj class has proven it can perform.
I believe the Mowj class doesn't exist as such, but each ship is a class in its own right, even if it uses more or less the same hull;
that is, each is a prototype where they installed or tested what the local industry could produce at the time or, failing that, what they were able to import at the time.
These ships have subsequently undergone modifications thanks to the technical and generational evolution of Iranian systems, but also thanks to or because of positive and negative experiences, including naval accidents.
With the reconstruction of the Sahand, I believe the limit of possible evolution with this hull has been reached, having understood that heavy weapons systems should not be placed too high.
Perhaps something could still be done with a ship similar to the latest rebuilt version of the Sahand, for example, a version dedicated primarily to anti-aircraft defense and only secondarily to anti-ship attack.
To achieve this, the ability to land a helicopter would have to be forgotten, thus freeing up that space for the new anti-aircraft defense configuration.
In any case, the most appropriate step for the Iranian Navy would be to summarize all the experience already gained and move on to a new project to which it could be applied, preferably on a new class of ships with larger displacement and dimensions.
