Ok so I am a fan like u of Usman Saab -even the actor Naved Aslam because I used to watch him in pavitra rishta before. He was a good dad there as well. Now it's confirmed he will dye. We r sad but remember that we as fans are lucky that not zain or Aaliyah are being killed off. Many leads are being killed off ... One best example of this we know is rang rasiya Paro. I don't watch the show but still I have been watching shows that had leads killed off recently which made me not interested much anymore and I stopped watching and it could have been much worse than this.. Fans we can be upset but be happy that our main ZaYa are not being killed off.
As they say every beginning has an end.
I think he will often be seen in flashbacks still though.
Don't give up on watching the show just because of the death. We will all miss him. I am reminded of when a dadaji is killed off in the indian tv shows. The dadaji usually keeps the leads together except here He wasn't a dadaji but he was a good father.
In short be thankful no lead is getting replaced or killed off.you would be more upset then. Will you really give up on ZaYa because of the death?