Hollyoaks : what happend to rob , diane , amber etc ?

I know amber , her mum and brother left but what's happening with the headmaster Rob who was taken away by the police and never seen again !?! Without a trial or anything. And to b honest I don't want the Sharpes b ack (awful actors) but they can't just think we've forgotten about the storyline and so they need to finish the storyline ! !!! I kno w a ll this happend. Ages ago. But I was just thinking about all this and wondered if the storylines going to be carried on ?? Thanx