I can say this when the aircraft is due for retirement depending on on it’s age and condition it’s in. The airline who owns it will either store it for a while, which in the long term means it’s up for sale looking fo a buyer at a cheap price. Otherwise after a length of time it will be parted out therefore be scrapped. Some aircraft put to the desert floors will go on with a life of another carrier or freighter company and others well the gone but not forgotten. I normally don’t come on the Discussion area but i have being looking at some very interesting articles people put on there.