Gigantic passenger planes currently being developed will have enough space to hold shops and lounges in addition to passenger seating.
Evidence
Gigantic passenger planes currently being developed will have enough space to hold shops and lounges in addition to passenger seating.
The number of passengers flying the air-traffic system is expected to triple within 20 years.
It will be impossible for airports to accommodate enough normal-sized jet planes to carry that many passengers.
Conclusion
The additional space will more likely be used for more passenger seating.