I actually think the Laura rumour is interesting in retrospect though, didn't most think she was just bull****ting and there's no way they'd repeat the same twist again, let alone contact her of all people?
She said she had to consider whether she wanted to go through it again, so is there any chance they've actually been contacting multiple people?

in which case it may be time to scour the accounts of loads of ex housemates from around the world to see if they follow any BBCan ones