Well, bcs China has a strict rule especially if the drama will air on National TV, that's why there's tons of chiness drama but they still on waitlist, especially chinese drama with military story, i wait for 5 and a half year for waiting cheng yi and zhang yuxi drama, cuz they has military storyline even it's just a small part, and they will postponed if the cast or support role has a scandal (dating, avoid taxes, etc) the platform doesn't want make decisoins that causes losses, and the gov of china will punish the platform if they still chosses to released the drama if the problem has been not resolved (cast or director or producer on scandal). But, if the drama only released on platform streaming (tencent/wetv, youku, mangotv, and iqiyi they will be broadcast soon, for example the platform streaming released a lot of chinese mini drama