Will there will be a option for non cis players to transfer back to gaijin client?

I have a problem with warthunder I can’t play warthunder due to changing non intentionally my game version to cis I am from Poland so I can’t eventually play the game like this because it would be whole in russian

We cannot help you here, sorry.
Please contact our support via Ticket: https://support.gaijin.net/hc/en-us/categories/200005031-War-Thunder