There's some huge storylines about to hit Coronation Street in the new year, from health twists, to big returns and some unexpected departures. There's some hard-hitting plots on the way involving several characters, with a devastating knife crime plot amongst them. Current storylines escalate with "serious consequences", while new plots form too - as well as the arrival of some new faces. There are some unannounced returning characters set to cause trouble, amid the confirmed return of Rob