Star trek: Borg Transwarp Conduit Network & Hubs

 Here is the Borg Transwarp Conduit Network and Hubs... and adjusting the image distortion I overlay various objects and move them over our Voyager return path map.

Assuming Janeway eliminated green line that exits near Klingons, Romulans, and Federation, that leaves a whole lot of places across the Galaxy where conduits exit, and hubs exist for major Borg movements into the future.

What do these represent?
Conduits represent Technologically advanced Civilizations of Assimilation interest to the Borg.

Secondary Hubs represent heavy assimilation efforts and resource commitment to expansion.

The origins of the Borg can be seen in the development of smaller conduit networks targeting less significant civilizations before they go after bigger species further out. The entire Beta Quadrant along the Perseus Arm is under Assimilation from the far edge of the Romulans and Klingons around to the Delta Quadrant. And the Beta Quadrant hub has a conduit extending out to the Outer Arm. Who ever is out there is Third Assimilation Category...Which the Federation is only on the verge of becoming thanks to the efforts of Voyager.