I'm not sure what Honda gets out of it. Nissan back in the 70's- 90's? Sure. They were bold, took chances, raced, won, were exciting and innovative. Nissan since Ghosn? They suck. They're dead. Their spirit crushed. Plagued by bad press and poorwe cars.
BTW that dude who killed Chrysler (again, for the third or so time) by creating Stellantis? That was Ghosn's protege.
Honda is leasing the market battling Toyota but with better products right now. I just don't see what Honda would get from any baggage like Nissan.