It would seem to me that the wine in a box bladders would make an excellent storage device for left over wine.
Simply by take an empty bladder, with no air, put it in a vacuum device, and suck the wine into the bladder. No air, no gas phase Oxygen. If done right after opening the bottle, no absorbed oxygen.
Not that hard to make the vaccum device, I have a large one that sucks up to 12 quarts of oil out of my boat through the dipstick and is under $40US.