As sequels go, it's long been sitting on the top of the pile marked 'pipe dream'. Frankly, there seemed to be more chance of playing pat-a-cake with Ash's severed hand than of seeing Sam Raimi and Bruce Campbell collaborate on Evil Dead IV.But, lately, with excitement about all things evil and dead building to fever pitch thanks to the forthcoming Evil Dead remake, things have changed. A couple of weeks ago, while promoting Oz The Great And Powerful, Raimi let slip that he and his brother, Ivan Raimi, were set to begin work on writing the fourth instalment of the Evil Dead series. Producer Rob Tapert confirmed as much the other day - and today, Empire spoke to Ash himself, Bruce Campbell, who confirmed that it's very much on the trio's radar."The reception to this movie [Fede Alvarez' remake] has been pretty good so far, so it encouraged Sam and I to go,...