Strictly Come Dancing’s future was thrown into question this year after the show became caught up in a scandal. However, the BBC favourite is returning to screens this weekend for its 20th anniversary series, and while it’s been a tough year for the show, long-term star Karen Hauer has insisted it “doesn’t need to change”. Last year, actress Amanda Abbington was paired with Giovanni Pernice, who had starred as a professional dancer since 2015. However, the Sherlock star, 52, opted to pull out of the series during week five, later coming forward to accuse Pernice, 34, of being “abusive”. A long…