I would LOVE to see her on another episode...she cracks me up.  

*When John died, I thought almost immediatley of Missouri. I wonder if she sensed his passing or bargain with the demon. Even anything about Dean's brush with the reaper himself. Being such a key element of John's life and his search for answers, I assumed they would have mentioned her. I like when shows touch back on characters to keep the element of real life present.*

Anyway, I'm just rambling  

yeah i liked her too. i reckon shell be back. i like the way she can keep dean in line. it makes me laugh cos he darent say anyfin to her.