https://www.youtube.com/watch?v=TBdBY8ZKoPc
So both Vishwa and Agastya are dying leaving Imlie single once again so that she can start her journey anew with Inspector Surya Pratap Reddy.
Coincidentally, both Agastya and Surya (played by Sai) have their names ending with "Ya" which allows us to keep the ship name of the lead couple the same #ImYa.
Myself personally I am not at all happy with development of killing off Agastya's character and bringing in a new lead character (although it is played by the same actor).
I personally believe this season started with #Imastya/#Imya (Agastya-Imlie)'s journey and it should have ended with the same lead couple but I guess "All is fair in the love and war of trps".
So now we are going to get a fresh romantic tale of #Saija together as #Imya (Imlie-Surya). Hopefully, Gul Khan and her writing team do not commit the same mistakes which they made in #Imastya/#Imya (Agastya-Imlie)'s story.
And if Surya is not Agastya but a completely new character then they should have changed Sai's getup as a police officer (maybe give him a different hairstyle and makeover).
The current Surya getup looks as if Agastya is going for a fancy dress competition in police uniform.