The negotiations are on going, the Turks have come up with a serious proposal, the brass are not convinced, the Italians are favourites, and you are 100% right about these subs having SSGN as a secondary priority.
# not to denigrate our Turkish brethren, they are developing at a good rate in the defence industrial capacity, but the Italians are simply the best at this.
I feel to know the operational roles PN maybe thinking, but cannot reveal them all so publicly.
Italy may present two options to PN: 1) Fincantieri and 2) Drass.
1) Fincantieri:
Government owned
Lot of Political Clout
Originally Cantiere navale del Muggiano, Bankrupted, Acquired by Fincantieri group.
No organic S/M design capability left in the company
Builds designs from others (TKMS, Russians etc)
Financially supported by Italian Government
Can cause potential scandals
May struggle to meet PN design, operational, and long-term support requirement
Maybe expensive due to massive overhead of Muggiano.
For SWATS, they dont seem to have anything mature, only concepts from here and there. They have some stories from the past, but nothing that is buildable, bankable, and can be put in service in three years.
2) Drass
Privately Owned. Based in Italy, Production in Romania.
Proven and Renowned SMER and Saturation Diving Firm
Have absorbed other Italian companies which made/delivered submarines and SDVs.
Focused on Compact Submarine Designs, modernized improved legacy concepts.
Currently building DG160 for DG450 for unknown Navies.
Seems to have capable design team
Seems to have capable production and support infrastructure
Could potentially help Pakistan Navy make its own submarine design and construction in the future.
For SWATS, Drass has at least two SWATS (160 and 450) under manufacturing, so they may be ahead of others in design, combat system, weapon integration etc. This maybe more believable and convincing for PN.
Lets see who the Ameer ul Behr al Bakistan decides for its emerging Naval force, that will be some force to be reckoned with.