Both sides (Iran and Yemen) are both against Saudi, especially Iran with their oil production being curtailed.
Saudi can't afford to attack Iran without first protecting their oil fields or they will loose the other half.
Nothing will happen till Saudi is ready to fight back. Meanwhile 5% of the world's oil production has been destroyed.
Price of gas going up for sure not to mention war drums are beating and no doubt in my mind President Trump will be right in the middle of it all.