He says "potentially my last game, which it is". Easy to interpret it as him saying it was his last game, but he's only, accurately, saying it potentially is his last game for the Packers. No intention or desire to leave the organization, but no strong desire to come back either. Often you hear players hoping to be back, but nothing in this case.
He's going to test the waters, no reason for him not to since the Packers won't give him a massive contract. He'll get what he can get, probably elsewhere.