I think most christians are gonna roll with it. Work it into the dogma somehow. Still making humans number one. Some sort of prequel to the bible or something. I think Islam and Judaism would have a harder time dealing with it. Just because they arent missionaries like christians. They dont want to add new members. Christians would probably want to add nhi to the flock.
End of rant
Yup, youll see some doomsday cults pop up at well.