What do you think will happen in season 6?

Okay here's what I think:

Sam's back but obviously he's emotionally scarred by his experience in hell, unless this isn't really SAm. Dean will probaly spend half of the season trying to figure out the mystery as to how and why his brother escaped Hell while a new threat emerges. Cas might be fighting with or opposite of the brothers considering his new position in heaven.

I also have a feeling that Crowley will turn up and that he definitly has a hidden agenda. Old friends and foes will make appreances to distract the boys on their mission. And according to that reccent interview with Jake Abel, we haven't seen the last of Adam. If Sam got out...so did he. Adam might apprear during the beginning or halfway of the series to either team up with them or...is Michael still using him? I'm also thinking the devil had other plans for the boys...maybe his son Aaron will rise on earth.

I'm still uncertain about Chuck but I don't think he's God, that might as well be smoke and mirrors. But I do believe we will see God make an appreance this time. And is the appocalypse really over...or is it just getting more interesting??? These are all questions hanging in the balance of next season!! Can't wait!!!

chuck is not god. sam some how deafeated lucifer and now he is just emotionly scared sam. thats all...

I think Sam will come back from hell( not as Lucifer) and he will not have a soul. Then Dean might try anything to figure out how to get his brother's soul back.