"The bundle" is only special pricing for the individual apps when bought together. They don't function as only a bundle and if one moves to a country where the "bundle" wasn't offered to students, one doesn't have to replace them by rebuying the individual apps.
If one buys the apps in one country, say where one attended a foreign university, and then returned home, one would then need to change the country to which one's account was associated to one's home country. Since the Purchase list is specific to the country in whose store one's account is associated, the list would be empty until one purchased an app in one's home country. Because of this, one would not be notified about updates or upgrades to the apps that one bought in the store associated with the country where one attended school. But one would not lose use of those apps.
If one heard through the grapevine that one of those apps has an update available and one tried to update one's copy, the system would see it as a new purchase at first and try to charge for the app. But as one went through the steps of buying the app, the system would eventually recognize the one bought this app previously through another country's store and then offer the update for free. The app would now appear in the Purchase list for the home country and one would be alerted to future updates for the app.
However, any apps one bought in another country's store that weren't sold in one's home country's store, could not be updated as in the above scenario.
As a dual national, I have firsthand experience with, not only buying a previous bundle offered by Apple in the past, but also with changing the country with which my account is associated.
