What are current known feasible plans to establish self-replicating assets on Mars? On Wikipedia, there are references to NASA plans telling that up to 80% could be manufactured, but is there any progress in this direction? https://en.wikipedia.org/wiki/Asteroid_mining#Self-replicating_machines
There are no concrete plans for off-world self-replicating systems. NASA is studying the idea (and has been for decades), but we're too far away from any self-replicating system to start designing one for Mars.
Perhaps the group closest to achieving the goal of self-replication is the community trying to build self-replicating 3D printers, but they're not there yet (can't replicate the electronics, for example).