i dunno, i ddint much watch byker grove, i think she should return though, shes actually a really good character, was she only meant to be in it for a short amount of time?
I also hope that Val returns at some point because she is a bit of bitch and a good one at that! It seems a bit odd that she is going anyway as I thought TPTB were doing a good job of building up Diane's family, what with Val and Paul. She is also a good character and I think Charlie Hardwick plays her well. Val and Diane are very believable sisters - and there arguments make great viewing!