Will the ozone layer ever be gone?

Answer 1

It is unlikely. The "hole" is not a hole at all. It is a thinning of the ozone layer (near each pole) that occurs annually during each poles winter. These are primarily caused by a lack of sun. The rest of this thinning is caused by solar activity, such as solar flares.

The worst thinning of this layer occurred in 1858, which is also the year that recorded the worst solar activity. Even if we had massive solar flares, that did stripe the planet of all ozone in this layer, we would see the immediate rebuilding of this layer.

Ozone is created by oxygen's contact with sunlight. This is why we only see this thinning during each poles winter and only in areas that see no sunlight for weeks at a time. No thinning is recorded at or near the equator.

Answer 2

Ozone depletion is the process where ozone holes are created in the ozone layer. It is caused due to the action of chloro-floro-carbons on the ozone molecule to break it down to oxygen.