Since you have a Preterist mindset, when are you assuming it is meaning when He returns after having received the kingdom? He returns from where and when? Maybe you already addressed this later in the thread? As of now, I don't recall having seen this thread in the past, and that I have only read the OP thus far.
I’m not fully convinced of the where and when His return is in this parable but it could’ve happened just after the cross. Here’s the verses that might suggest that …
Luke 19:15 then he commanded these servants to be called unto him.
Matthew 28:7And go quickly, and tell his disciples that he is risen from the dead; and, behold, he goeth before you into Galilee; there shall ye see him: lo, I have told you.
Luke 19:17 have thou authority over ten cities.
John 20:21Then said Jesus to them again, Peace beunto you: as my Father hath sent me, even so send I you. 22And when he had said this, he breathed on them, and saith unto them, Receive ye the Holy Ghost: 23Whose soever sins ye remit, they are remitted unto them; andwhose soever sins ye retain, they are retained.
Luke 19:13And he called his ten servants,
John 20:24But Thomas, one of the twelve, called Didymus, was not with them when Jesus came.
Obviously Judas was already dead and Mathias was not yet an apostle, making ten servants.
All the other details linking the 10 apostles/servants to the Luke 19:11-27 parable were not recorded.
John 21:25And there are also many other things which Jesus did, the which, if they should be written every one, I suppose that even the world itself could not contain the books that should be written. Amen.
John had seven cities which were the seven churches in Revelation.