The Christian disciple of Jesus in every age.
"You" here seems indeed to be directed to those in His direct hearing, but He seems to intend to include not only Christians persecuted in that first generation, but all Christians.
Consider Matthew 24 for example:
Matthew 24:3-13 (DRB) And when he was sitting on mount Olivet, the disciples came to him privately, saying: Tell us when shall these things be? and what shall be the sign of thy coming, and of the consummation of the world? 4 And Jesus answering, said to them: Take heed that no man seduce you: 5 For many will come in my name saying, I am Christ: and they will seduce many. 6 And you shall hear of wars and rumours of wars. See that ye be not troubled. For these things must come to pass, but the end is not yet. 7 For nation shall rise against nation, and kingdom against kingdom; and there shall be pestilences, and famines, and earthquakes in places: 8 Now all these are the beginnings of sorrows.
9 Then shall they deliver you up to be afflicted, and shall put you to death: and you shall be hated by all nations for my name's sake. 10 And then shall many be scandalized: and shall betray one another: and shall hate one another. 11 And many false prophets shall rise, and shall seduce many. 12 And because iniquity hath abounded, the charity of many shall grow cold. 13 But he that shall persevere to the end, he shall be saved. 14 And this gospel of the kingdom, shall be preached in the whole world, for a testimony to all nations, and then shall the consummation come.