I think Peter is still an Alpha because when Laura Hale died she was still in full wolf form until Stiles messed with the wolfsbane.
posted over a year ago
This couldn't be anymore wrong. Okay, the reason SHE was in full wolf form was because the wolfsbane kept her into that form! She didn't even die in her alpha form, I saw it on an episode (in which episode? I forgot) and most fans think it was a burial ritual. Second of all, Peter's eyes are blue, not red. Seriously. He's a Beta.
Actually, I read this off of a website. Derek is still an Alpha and Peter is a weak Beta wolf, but I think he's got a plan to try and get back to power as an Alpha wolf