Maid Dragon S1 was made because Takemoto wanted it. But they did not buy the rights as they did with Hibike, they just financed anime production themselves so got most of profit. They don't own merch and continuation rights. Its more like Silent Voice. Meanwhile, Kyoani owns Hibike anime adaptation rights (but not novels).
I assume they`d be willing to make S2, but the publishers can't afford Kyoani conditions and would want to make own profits.
Either way, without KyoAni i don't see Maid Dragon succeeding. Rather`d see new studio make Ojojo