The rouge is not going anywhere (nor, though some in other online places have intimated it is, the missed field goal return).
It's only being modified so you can't get a point by drilling a close field goal or punt out of the back or sides of the end zone. Toronto won a game last season on a last-play missed field goal that missed, but because of the short end zones at BMO Field, could not possibly have been returned.
They're closing that loophole.
