Donna is coming back... with a little girl, Marlon's the dad. Have we not had a similar storyline before with Kelly coming back with Jimmy's son?
Are they running out of ideas and just repeating old storylines?
Probably, I'm sure someone posted about a similar point about Deadenders and Constipation Street too.
Frequently recycled storylines must be bound to happen though, with the longevity of the programmes and changing of script-writers.