By Olivia Wheeler Coronation Street fans are convinced they’ve rumbled a sinister Denny twist as Paul and Gemma Winter’s estranged father showed up on Wednesday. Soap fans will recall that Paul was diagnosed with motor neurone disease (MND) last year leaving him distraught. He kept his diagnosis a secret for some time but eventually told husband Billy Mayhew and those close to him what he was going through. Paul celebrated what was believed to be his final Christmas with his family in December and it is expected that Paul will tragically pass away in the next few months before the end of 2024 …