MT 26:64
HEREAFTER YOU WILL SEE THE SON OF MAN COMING

I) [Mt 26:62-64 NASB]:

62 "Then the high priest stood up and said to Jesus, “Are you not going to answer? What is this testimony that these men are bringing against you?”

63  But Jesus remained silent. The high priest said to him, “I charge you under oath by the living God: Tell us if you are the Messiah, the Son of God.”

64  “You have said so,” Jesus replied. “But I say to all of you: From now on you will see the Son of Man sitting at the right hand of the Mighty One and coming on the clouds of heaven."

A) [(Mt 26:64) Expositor's Bible Commentary]:

Mt 26:64 NASB ''' “You have said so,” Jesus replied. “But I say to all of you: From now on you will see the Son of Man sitting at the right hand of the Mighty One and coming on the clouds of heaven."

"The best explanation of v. 64 is that Jesus is telling the members of the Sanhedrin ("you" is pl.) that from then on they would not see him as he now stands before them but only in his capacity as undisputed King Messiah and sovereign Judge.
[The words in accordance with the normative rules of language, context and logic cannot be restricted to the physical lifetimes that the people He was physically present with or any other times but for all time no matter how long those individuals or any individuals might live out their temporal lifetimes and on into eternity no matter what their eternal destiny. Jesus Christ will no longer be in His temporal body as it existed in past times before the cross, not yet as the resurrected "Son of Man" sitting at the right hand of the Mighty One and as the One Who is coming on the clouds of heaven in His Second Coming Who will forever be as that One Who came on the clouds of heaven in His Second Coming for all of eternity!!!]

"From now on" (i.e., "in the future," NIV) that is the way they will see him. Matthew does not include the word "only" or the like (e.g., "From now on you will only see the Son of Man sitting on the right hand .... ") because it would imply a possibility they might not see him at all, which is not true."

This cannot have Christ's Second Coming in view in the physical lifetimes of those who were present with the Lord at His trial because the Second Coming does not include seeing
the Son of Man sitting at the right hand of the Mighty One in heaven while these Jewish rulers were in their mortal lifetimes while on earth. He will be the One Who will in the future evidently beyond their mortal lifetimes be coming in the clouds in His Second Coming - in the sense of Who He is, not necessarily restricted to occurring in their first century lifetimes while they still were in their mortal bodies when they might see Him.