Well, it doesn't make a whole lot of sense to make a new king when your opponent has a queen on the board
He will kill em both
And, Lets say both your kings are stuck on h7 and h8, and the queen checks a king from the g6 square..the first king can't move and the second blocks his only escape route..seems like a paradox..I mean what will you call it, stalemate or checkmate?
What if you could promote your pawn into a second king? Comment with your thoughts. Also this is 99 percent a joke, I am not seriously suggesting this as a new rule in chess, although it probably should be considered. lol