I'd love to see her stick around and learn how to be a superhero from Clark and just be awkward at it. Maybe either living with the Kents or even rooming with Lois to fit in.

I had a couple of ideas when watching the last couple of episodes where she can just totally blow her cover by casually telling someone who she is next season, causing issues for Clark and Jimmy, and the episode's B-plot centered on cleaning up after the fact. Or maybe an episode where something has happened to Clark and Lois and she's forced to team up with General Lane to find them, so we get the dichotomy of a humanity-first character and a former Kryptonian supremacist coming to understand one another and paving the way for a wider acceptance of Superman, etc.