CD Projekt announced on October 5 that the expansion starring Idris Elba cost a hefty 275 million Polish Zloty (around $62.7 million) to develop and approximately 95 million Polish Zloty (around $21.6 million) to market.
I'm not saying repairing and adding missing functionality isn't a good size portion of that cost, but calling it a $125 million cost based on the cost of the expansion and marketing which were already planned regardless of how well the initial release did is miss-leading at best.