The most logical thing for Fatshark would be just to add another career for every hero via a DLC instead of adding a complete new hero. Voice lines, breaking with the “four of five”, complete new set of weapons which are again just an existing weapon in disguise.
The careers don’t even have to fit into the storyline.
Kruber was imprisoned by Skaven, flees and then arriving at the hold he is a knight? And Bardin an Ironbreaker? Just add careers and no new heroes.
Especially not Okri. Okri is never allowed to have a single voice line or an image. That’s the fun about him.
Implementing him in the game, even as a NPC would, be hilariously stupid.