Be great to see Dennis back as long as they don't restart the awful Shannis storyline. I know some people on here may like it but to me it was borefest of last year. Dennis was far more of an interesting character when he first joined the show and there's plenty of potential good storylines for him that don't involve his love life. As for Sharon she's not half the character she was in the 90s and I hate the way they had her simpering around both her dad and Dennis. My other problem with them being the lack of any real chemistry there. Dennis had some with Kate and even to a degree briefly with Kat. But with Sharon and Zoe there just wasn't that sparkle.
Don't get me wrong I like both Sharon and Dennis individually. But together they just don't work for me and are a waste of two good characters.