We shall see. CA highly efficient agriculture industry is already producing 19.5% of the US crops with only 3% of the farmable land. Actually, if you only consider crops that are directly for human consumption, the percentage is much higher. Well approaching 30%. I don't think it is too far out of the realm of possibility that one day most crops will be grown in even more efficient vertical high tech farms.
Think of the possibilities. Year round planting seasons with 24-hr a day optimized light. Not having to worry about drought or, for that matter, too much rain or rain at wrong time. Always the right temperature. Not too hot, nor too cold. Reduce the potential damage from detrimental soil pathogens. Minimized the use of pesticides and herbicides. Recycled water.