In this, the pawns can en passant any piece if it comes directly in front of the pawn vertically
no thanks
Maybe as a minor variant, but that would make pawns way too overpowered
its ok
My main concern is pawn endgames, as the threat of en passant will make every major piece vs. pawn endgame a struggle for both parties. And no chance of 50-move draw, as that resets on Pawn move!
In this, the pawns can en passant any piece if it comes directly in front of the pawn vertically