From the precap we can see that Surya is alive and is now with the primitives. There's a pretty good possibility that he lost his memory too.
In Kumkum, when the lead fell off the cliff she landed in some other village and caught their accent. And then when she got her memory back she got her own accent back. Even though it doesn't really make sense, its a TV serial after all!
So... what if this was to happen in Surya's case? What if he can't speak Hindi anymore and only knows and understands the language of the primitives? I think that wud def call for some hilarious episodesđ
It may go something like this:
Laxmi: Bapuji, aap zinda ho?
Surya: Blah blah bleh bla
Karan: Bapuji, tum kya keh rahe ho?
Surya: Blah blooh, blah
What do you guys think? After seeing the precap, my imagination is running wildđ