By law manufacturers after offer parts 20 years after they stop offering it on a new car. So if 2012 is the last time they make a certain part to upgrade it to something better they still need to offer the old part til 2032.
If the items have been ordered, the period it will take for the replacements parts to arrive will depend on the shipping agency delivering the items. Mostly, shipping period takes approximately 3-4 working days for most agencies. It would be good that you confirm with your agency the period it will take for the items to arrive.