27 For the Son of Man is going to come with his angels in the glory of his Father, and then he will repay each person according to what he has done. 28 Truly, I say to you, there are some standing here who will not taste death until they see the Son of Man coming in his kingdom. - Matthew 16:27-28
Note: Don Preston is a full preterist and therefore his teaching cannot receive full or blind acceptance. His many videos on YouTube are worthy of listening and interacting with in a timeline manner.
@3:22: Unfortunately here for Mr Preston, mello is not in the infinitive case. It is in the participle case and is being used to describe Jesus Christ. Mello is in the infinitive case in Matthew 16:27 and Revelation 1:19 but does not come close to requiring the "about to" translation that Mr Preston would prefer.
@4:00: This is where Mr Preston starts to generalize too greatly. This "judging" of the "living and dead" is not stated in Matthew. Just because the idea of judging is present does not require that it point to a singular judgment. In fact the very inclusion of the phrase "living and dead" (also in 1 Pet 4:5) provides us reasonable warrant to question the generalization.
The second is that Christ's "revealing" is an explicitly Pauline term (2 Thess 2:8; 1 Tim 6:14; 2 Tim 1:10; Titus 2:13). To try and push the meaning of this word into conformity with Jesus in the gospels is a stretch. This is especially the case since the very phrase is used in the past tense earlier in this book (2 Tim 1:10). This phrase is not always the "final revealing" of judgment.
I think it is safe to say that these two verses share ideas but not language. They are being stitched together through a desire to have cohesive theology against the testimony of other passages of Scripture. 2 Timothy 4:1 has nothing to do with Matthew 16:27-28.