Indeed this could become a “Spidermill” (Laddermill with crosswind kites) configuration, so a class of multi-kite airborne wind energy systems, where several kites combine their respective strengths to the main tether which transmits the resulting global force to the winch acting the generator, using yoyo method.
This can be a reality if the difficult control is achieved.
A sketch is available on Laddermill - #8 by PierreB, and one of the videos is already on Laddermill - #11 by Windy_Skies.