I like your structure you set up. Infact I think you have done amazing to date and tend to follow your lead as you have done so well.
That said I am planning my own for the new year and it will look something like this.
3 - 4 week blocks each with an emphasis on a major muscle group.
Block 1
Chest/tri
Legs
Off
Back
Chest/shoulder
Arms
Off
Block 2
Back heavy
Legs
Off
Chest/shoulder
Back more iso movements
Arms
Off
Block 3
Legs heavy
Chest/tri
Off
Back
Legs more iso
Arms
The layout is similar to program x as it works for me but changing the focus and will change up the movement selections. Trying to set up following Mike Israetel's guide.
Right now this is my first draft and will be tweaking it over the next month before I start it. Just a start lol