Of course Jesus is still coming back. The Bible says nobody knows the day or the hour of His return but only the Father. It also says it will be unexpected:
"Immediately after the tribulation of those days the sun will be darkened, and the moon will not give its light, and the stars will fall from heaven, and the powers of the heavens will be shaken; then will appear the sign of the Son of man in heaven, and then all the tribes of the earth will mourn, and they will see the Son of man coming on the clouds of heaven with power and great glory;
(Matthew 24:29-30 RSV)
For the Lord himself will descend from heaven with a cry of command, with the archangel's call, and with the sound of the trumpet of God. And the dead in Christ will rise first; then we who are alive, who are left, shall be caught up together with them in the clouds to meet the Lord in the air; and so we shall always be with the Lord.
(1 Thessalonians 4:16-17 RSV)
Watch therefore, for you know neither the day nor the hour.
(Matthew 25:13 RSV)
Watch therefore--for you do not know when the master of the house will come, in the evening, or at midnight, or at cockcrow, or in the morning-- lest he come suddenly and find you asleep. And what I say to you I say to all: Watch."
(Mark 13:35-37 RSV)
You also must be ready; for the Son of man is coming at an unexpected hour."
(Luke 12:40 RSV)
The Lord is not slow about his promise as some count slowness, but is forbearing toward you, not wishing that any should perish, but that all should reach repentance. But the day of the Lord will come like a thief, and then the heavens will pass away with a loud noise, and the elements will be dissolved with fire, and the earth and the works that are upon it will be burned up.
(2 Peter 3:9-10 RSV)
Remember then what you received and heard; keep that, and repent. If you will not awake, I will come like a thief, and you will not know at what hour I will come upon you.
(Revelation 3:3 RSV)
Heaven and earth will pass away, but my words will not pass away. "But of that day and hour no one knows, not even the angels of heaven, nor the Son, but the Father only.
(Matthew 24:35-36 RSV)