He did have psychic visions in the Brothers Apart storyline, back at the beginning, but I’ve chosen to let them fade away in lieu of a different type of ability. So far, each victim of the curse exhibits their own particular knack. Sam can tell when someone’s looking at him, or searching for him. Dean can find whatever he needs. Jacob can lift many times his own weight. These begin at different ages for each character.
For the rest, there is a very specific plot that BA is following that will involve Yellow-eyes, Celeste, and John Winchester, and I can’t say much else or it’ll give away the story. Let’s just say that the demon hasn’t forgotten about Sam, and knows he’s out there.