Imo the leaked documents were put out deliberately in order:
to prepare the masses, that Ukraine is going to loose this war
to prepare for the Poles to move into West Ukraine,
to arrange a peace conference and to draw the boarders of Europe new ( including Germany getting back its old boarders of 1913,except Kaliningrad, leaving at the most only a small Ukraine.
Imo the leaked documents were put out deliberately in order:
poland isn't going to give up it's rich developed western part.
All that will change on the map is Ukraine becomes smaller and it will take decades before we the west officially accept it.