Has it ever been said whether the Cokers were Laurie's birth parents? Or maybe Laurie was the baby Babe took and Pam wasn't actually the birth mother and didn't know it was Les' child they were adopting... Mwahaha
I don't actually think any of this is going to happen, but I am definitely filing this theory under would have been marvellous, alongside all those (better) Doctor Who story arcs.
Mind you Kathy Beale faking her death used to be in that file as well...