Yes, I agree that Jenny would be a loving granny.
Wouldn't it be nice to have a Cobbles baby born naturally to loving (and solvent) parents with no doubt about the paternity, no appointments for terminations and changes of mind, no fears about who will look after the baby whilst its mum is in prison and no life-threatening illnesses?
It seems they are all 'miracle' babies, conceived after a half-remembered one night stand, to parents who hate one another, and are unable to care for the child because of reasons too complex to understand, and just before they are due to start school they develop a condition that needs them to be off-screen for long enough to grow a new head.