How do you guys imagine they mod a game that doesn't exist?
TW have said there is a Bannerlord, so the game does exist, it just isn't finished. Many people who now make games orginally made mods, and all released games are is mods with an official release stamp. If the cRPG guys were in comms with TW, getting their design and code into BL wouldnt be too hard, especially if the work they have already done helped to get around the difficulties they spoke of in the interview