When Wynonna asked Juan Carlo whether, by going into the church, she'd be able to get back to Waverly in time, he answered merely that if she did so, "the Earp sisters will be reunited." This non-answer definitely seems like a cryptic, exact words sort of answer, particularly since Waverly probably isn't actually an Earp. On the other hand, the only other candidate, Willa, is dead. Nothing in the vision seems to me like it could be interpreted as reuniting her with her sisters in any sense.
What hidden meaning, if any, is in this utterance?