Jesus will not be moving off the right hand of the throne of God until He comes again, for he is and has been since his ascension being the High Priest for His people!
He will be leaving before that -
1 John 2:1 He is making intercession
Hebrews 8 - He does that work as our High Priest - in the sanctuary in heaven
Rev 15:8 all ministry in the sanctuary in heaven ceases just before the 7 last plagues of Rev 16.
1 John 2:1 says...……….
"My dear children, I write this to you so that you will not sin. But if anybody does sin, we have an advocate with the Father-Jesus Christ, the Righteous One."
NOT ONE single word in that Scripture indicts any movement from the right hand of the Father or a place of less honor and authority.
The text you are quoting is used to demonstrate the importance to the Christian of Christ's work as "Advocate" in His High priestly role in heaven
Hebrews 8 does in fact say that Jesus is our Great High Priest in heaven.
The referrance of "Right Hand of the Father" is that The Scriptures frequently picture Him at the right hand of the Father-a position of honor and authority.
And even more specifically that his work as our High Priest is in the heavenly sanctuary.
Hebrews 8
Now the main point in what has been said is this: we have such a high priest, who has taken His seat at the right hand of the throne of the Majesty in the heavens, 2
a minister in the sanctuary and in the
true tabernacle, which the Lord pitched, not man. 3 For every high priest is appointed to offer both gifts and sacrifices; so it is necessary that
this high priest also have something to offer. 4 Now if He were on earth, He would not be a priest at all, since there are those who offer the gifts according to the Law; 5 who serve a copy and shadow
of the heavenly things,
So then: The sanctuary in heaven is where our High Priest ministers as our advocate.
Rev. 15:8...…..
"And the temple was filled with smoke from the glory of God and from His power; and
no one was able to enter the temple until the seven plagues of the seven angels were finished."
No ministry in the heavenly sanctuary the entire time the 7 last plagues of Rev 16 are poured out.
Christ is no longer ministering there for the forgiveness of sins etc. That ministry ended so that the plagues are poured out.
Then in Rev 19 with the end of the plagues we see - the second coming and there Christ is (not in the Sanctuary) but leading an army of angels to Earth.
Nothing here that says the judgment in heaven has started when the plagues are poured out.
Rather the conclusion of the judgment in heaven is the one stated by Daniel 7:22 "judgment passed in favor of the saints" NASB. and Until that happens -- until that judgment ends - the saints are being persecuted on earth according to Daniel 7.
All of this is included in the 7 Year Tribulation which is still future to us today.
There is no 7 year tribulation period
Daniel 7, Rev 11, Rev 12, Rev 13 all point to the same 1260 years of dark ages persecution of the saints that happened some time after the fall of the pagan empire