As of December 2018, there is no news about the second season.
The ending is: Master Li Ku (the founder of the Soul Control Group) was not able to fulfill his spiritual wish in the end. All the conservative members of the Soul Control Group he created were spiritual disciples, and they were given to the master of black work. One lesson, people who have been possessed by spirit disciples are also human beings, and spirit disciples are also divided into good and bad. Don't kill the spirit disciples blindly, but peel off the human body by stripping the spirit disciples' souls. Matters in the human world are handled by people in the mortal world.
By jumping off a cliff, the spiritual disciple is stripped from his body and returns to a normal person after 49 days. Two months after the spirit disciple stripped off his body, he called everyone to a meeting and disbanded the spirit guarding group.
In the end, Yan Lingjiao was resurrected. Baili Dengfeng sacrificed two of his yang energy to be resurrected. At the same time, half of his power was taken away. Yan Lingjiao lost her memory and ignored Baili Dengfeng's kindness. Extended information
Plot of "Spirit Lord":
There are two kinds of people in the world, one does errands for the living and the other works for the dead. We call these people "spirits" "Disciple", and the deceased who instructs them to do things is the "spiritual master". After mortals become spiritual disciples, they only live to fulfill the unfulfilled wishes of the undead souls who have left regrets in life and are still dying to die in peace.
Baili Dengfeng has only one purpose in this world - to find his long-lost wife Ruyan. On the way to find his wife, he met Jia Xuan, who was eager for revenge after his family was killed, Liang You, who was weird and obsessed with him, and Liang Yuan, who was neurotic and suspicious of everything.
Through a series of events, he learned about the existence of spirit masters and spirit disciples, and came into contact with the mysterious organization "Spirit Control Group" whose mission is to eliminate them. As each mystery is solved, Dengfeng will get closer and closer to the truth, but some truths he may not want to see.
Reference: Baidu Encyclopedia-Spiritual Lord