User blog comment:Tommy,Klaus&Kol2012+/will new villian come out of purgatory?(spoilers)/@comment-4945263-20120519075254/@comment-4554525-20120525231401

i think chaos could be locked up in purgatory, having been a bigger threat than eve and the leviathans. I would also like them to go back to their s1-s4 roots and keep the "big bad" for more than 1 season instead of killing them in one. Its possible the remaining leviathans might fill that void for season 8, but I think Chaos could be in their and befriend dean, dean not knowing who he is, only to be freed and destroy everything in his path and "remake" the world in his image. It would later be revealed he is gods brother, father or something and not even death can kill him. As for Eve returning, I dont think so, possibly a cameo in one episode with her monster soul dean encounters along with every other monster he killed plus maybe some of the alphas we've never met but as for being the main villian, i dont think so, i doubt they will resurrect her in full form