Jesus is omniscient, and He knows when He is coming back...but when He was here walking this earth, He chose not to know. Now that His work on Earth has been done, He is busy building His Church, and He knows and sees the Day fast approaching when His Father will give Him the command, "My Son, mount up! Go get your Bride!"
With fewest assumptions in your favor, your position would be embraced by the "law of parsimony" or "Occam's razor" (the simplest explanation is the best one)
Your view supports "relational-subordinationism" but only in a finite role when Christ was a man. This position technically only supports "partial subordinational relations," that Christ was only limited in his physical corporeal body performing a duty in a finite role. Many Trinitarians believe in this view.
A second Trinitarian argument is that the chosen or delegated "role of Christ, as a whole (is a constant, physical and spiritual)" is relationally subordinate (also not in substance but role only). Many Trinitarians also believe in this view.
However, regarding "chosen or delegated" relational-subordination, to me it does not matter since His "role calls for an action of limited knowledge" either during his time as a man or in a time-constant that will by our timeline materialize His coming. A role is a role, physical or spiritual, if its a delegation or chosen sacrifice of knowledge.
There is also the third argument that would say that "eternal same-substance can retain different knowledge levels or stages of knowledge" but
not by delegated relational-subordination but instead by increasing capability which causes relational-subordianation to diminish. Thus no limitations are delivered but instead unlimited knowledge is not yet "obtained." Many Trinitarians will scrutinize this view because it would insinuate that Christ is "less" than God. However this view would not challenge the essence of Christ himself,
which would be pure subordinationism; this view like the first two delineate relational-subordination for knowledge and role only.
This third view will cause many to call it a form of Dynamic-Monarchianism (adoptionism) where Chirst as a man "achieved status with God." However this third view is not Dynamic-Monarchianism because this view will say that Christ is still and always was the "eternal same-substance" as God and Holy Spirit, and that knowledge, relationship and role is the only differentiators.