STOP PRESS: Literally just a couple of hours after posting the post below, I checked a different blog that seems "plugged in" to the Mennonite community. Lisa Miller has surrendered herself to U.S. authorities and has been sent to Miami to be quarantined and to await trial for "kidnapping" her own daughter! Isabella was issued a temporary U.S. visa. I don't know if she is returning to the U.S. yet, though she is now eighteen years of age and free from the threat of being made to have a relationship with Janet Jenkins. I think based on the wording that she has returned.
I'm not sure this was a good idea on Lisa's part. I hope that Isabella has a support network here in the U.S. to come to, since she will no longer have her mother. 18-year-old girls need their mothers, too! And no doubt they are very close after all of these years. I think that Lisa must have felt it was her duty to return to the U.S. and stand trial after what the men who helped her have endured--to stand with them. Here and here are posts about this.
I wonder if Isabella can be forced to testify against her mother.