My educated guess of the ops plan. Strike group 1 will be the fighters and EW planes from the US & UK carriers parked somewhere off the coast of Oman. They'll be refueled by tankers over Saudi Arabia before going through Kuwait or Iraq to hit Iran. 2nd strike group will be Israeli fighters plus possible US reinforcements, they'll refuel over Iraq before hitting Iran from the west. Final group is the US strategic bombers coming in from the Mediterranean Sea to drop the bunker busters on Iran's underground nuclear facilities.
The fighter groups will try to clear all the air defences right before the bombers come in, timing on this is gonna be a bitch. There's 2 large strike groups of fighters which all need to be refueled and ready to go while the bombers are somewhere over the Med. The big unknown is which bombers the US uses for this proposed plan, B-2s would be ideal but I'm not sure the US is willing to risk 1/3 to 1/2 of its fleet which would be the minimum required to carry all the bunker busters. 2nd choice is 1-2 dozen B-1Bs and accepting that some will be shot down by Iran.
Then there's Mossad. They'll try to setup another hacking & sabotage operation to take down Iranian air defences around the time of strike and cause as much damage & confusion as they can.
I really hope they don't try it for real, but that's how I think they'll do it if they get the go-ahead.