Is there any plan to add other voice languages? Suggestion

I would like in my case spanish castilian voices from Spain.
I would buy it for sure with spanish voice. What do you think?

Nope, not worth the money invested, the few extra sales won’t justify the extra cost for the developer.

Also, castilan doesn’t exist, it’s just Spanish.

Castilian Spanish is not the same as Latin American Spanish, so yes, it exists =)
But how can it not be worth considering how well the game has sold?

Because the cost of implementing unimportant extra-languages exceeds the profits it would bring from it. A random county-accent is also not a seperate language btw.