Hmmmm, I wouldn't say that. Sure, they gave Sammy psychic abilities, but they haven't even mentioned them in the last two episodes. And from an interview with Kripke, it seems he's been thinking a lot about Dean's character and how complex and messed up he is, so I'm pretty sure he's planning on going places with that. The WB doesn't really control the major creative decisions like that, I don't think. Not when it's going this well.