Auteur creator and mask enthusiast Yoko Taro will do anything for a price. Memorably, a couple of years back, the colourful character and president/director of studio Bukkaro said, "I, Yoko Taro, am a slave to capitalism, so I will do anything as long as I am paid and will do nothing if there's no money in it," which we find quite refreshing, actually.
It should come as no surprise, then, to learn the real reason behind Stellar Blade's upcoming NieR: Automata DLC: Taro wants your money, and the weak devotee to 2B that you are, you'll probably give it to him (thanks, The Gamer). That said, Taro actually reckons Stellar Blade is a better game than Automata, largely because of the "cuteness" of its characters. On X, posting from the official NieR series account, Taro (presumably) proudly proclaimed that "we will gladly say yes to anything for money".