Did the apostles predict a date and publish it to all the congreations?
Yes, apprently they more or less did. According to the last chapter of John, the word went out from them (the apostles) to the brothers, that John would not die before Jesus returned. Apparently that was a common belief among the brothers up until the aged apostle himself wrote the gospel account and cleared up the misunderstanding. That's why he wrote the explanatory words saying that that was not what Jesus actually said. They misunderstood Jesus and of course Jesus allowed the misunderstanding to go on for many years. / You Know