Well, I can’t say it’s a spoiler as I’ve not read anything to confirm but I don’t want to take anything away from the main, non spoiler, TV pace thread.
Here is my theory.
I think Joel’s brother is Nathan who groomed Bethany. I believe Nathan is coming back. This is why they’ve brought Bethany back. I think they’ve got Lauren, in the same way that they groomed Bethany. I also have my suspicions about Bobby. After all, did Carla get evidence as to who he is or just accept this stranger turning up on her door step. I think Max will be a big part of solving everything.