To clarify, I mean what is the worst/dumbest story idea you can come up with, plausibility be damned!
Mine would be: V and the Johnny engram survive 2077 and either equalize out into one being or are somehow just riding at a solid 50/50 dynamic. Somehow the original Johnny Silverhand returns. The V/Johnny amalgamation meet the real deal. They either kiss or kill each other.
Credits.