jcase and beaups are working on it. With those 2 guys, I have no doubt they will find an S-Off exploit.

As for Sonic's S-Off service, I trust Sonic 100% with my phone. I do not trust the USPS or any other carrier with my phone. Just will not send it away. We have root and Xposed and that will hold me for now.
HTC One (M8)
Microsoft Surface Pro 3