Of course, they will remain “on the shelf” to be used again, as necessary, to fulfil our monetary policy aim. A central bank should be flexible and may need to have many instruments at its disposal to achieve its mandate. But it should not take higher risks than necessary.
Ideally, we would want our economy to operate at a level that is as close to full production capacity as possible. At this level, inflation will stay low and stable, and the economy can expand at as rapid a pace as is sustainable over time.