If the Children in need sketch is going to put to rest all the "Cathy, Cindy" back from the dead threads because they are dead....

.... By that logic ghosts now exist in EE universe, and so should more ghosts start appearing?

https://www.youtube.com/watch?v=05JYrfbGYAk

Should there be more ghosts in EastEnders?

Oh, this brings back memories!

Ghosts in a spin off red button episodes yes. Dreams and hallucinations counted. In the main show only if there is ever proof that ghosts do exist (which I hope they do and is a better thought to become a ghost then nothing)