This is a very old image but it’s the general runway plan. As Jubguy said, they’re realiginging and expanding the easternmost runway, mostly used for non-commercial flights and general aviation, to parallel the other main runways, as well as expanding and creating new taxiways between all three. Also lengthening the middle runway (and I can’t remember where I read this but I’m pretty sure they’re repaving it as concrete as well, it’s the most used runway and it’s currently asphalt)
As far as a potential additional runway, I can’t find the image either but they have it planned just west of the westernmost runway, but it would require realigning the Jordan river canal once again, as well as demolishing the buildings east of Wright Brothers Drive.