I should also note that it’s not uncommon for Cobra Kai’s staff to have discussions with actors or discussions about actors reprising their roles, so there’s no guarantee he’s on board with any concrete story just yet.
I can personally say seeing Barnes back in action would be a treat, though, and I’ve often wondered how Johnny Lawrence would’ve handled Barnes back in the day.
As previously mentioned, re-introducing Terry Silver does present an organic path for Sean Kanan’s Mike Barnes to return, though no guarantees he’ll be along for the ride.