Debian Wheezy has reached its EOL (end of life) now. Does it also mean that all its files found here http://archive.debian.org/debian/dists/wheezy/ will be killed and deleted for good one day too? How long are the archives kept for and do they also have this EOL term?
EOL means that the distribution no longer receives any updates. The files on archive.debian.org won’t disappear any time soon — most of Debian’s historical releases are still available there; see the README file for details.
I’m not aware of any specific “official” declaration in this regard, but as far as I’m aware distributions moved to the archive are never deleted, and the archive is supposed to live at least as long as the Debian project.